Obama lays out 2nd-term agenda

President Barack Obama exited his limousine for the traditional presidential walk in the inaugural parade from Capitol Hill to the White House. (Jan. 21)

WASHINGTON -- A confident President Barack Obama kicked off his second term on Monday with an impassioned call for a more inclusive America that rejects partisan rancor and embraces immigration reform, gay rights and the fight against climate change.

Obama's ceremonial swearing-in at the U.S. Capitol was filled with traditional pomp and pageantry, but it was a scaled-back inauguration compared to the historic start of his presidency in 2009 when he swept into office on a mantle of hope and change as America's first black president.

Despite expectations tempered by lingering economic weakness and a divided Washington, Obama delivered a preview of the priorities he intends to pursue - essentially, a reaffirmation of core liberal Democratic causes - declaring Americans “are made for this moment” and must “seize it together.”

His hair visibly gray after four years in office, Obama called for an end to the political partisanship that marked much of his first term in the White House in bitter fights over the economy with Republicans.

“We cannot mistake absolutism for principle, or substitute spectacle for politics, or treat name-calling as reasoned debate,” Obama said from atop the Capitol steps overlooking the National Mall.

Looking out on a sea of flags, Obama addressed a crowd estimated to be up to 700,000 people - less than half the record 1.8 million who assembled four years ago.

Speaking in more specific terms than is customary in an inaugural address, he promised “hard choices” to reduce the federal deficit without shredding the social safety net and called for a revamping of the tax code and a remaking of government.

When Obama raised his right hand and was sworn in by Chief Justice John Roberts, it was his second time taking the oath in 24 hours - but this time with tens of millions of people watching on television.

The president beamed as chants of “Obama, Obama!” rang out from the crowd.

Obama had a formal swearing-in on Sunday at the White House because of a constitutional requirement that the president take the oath on Jan. 20. Rather than stage the full inauguration on a Sunday, the main public events were put off until Monday.

During a triumphant parade down Pennsylvania Avenue to the White House, the president and first lady Michelle Obama thrilled wildly cheering onlookers by twice getting out of their heavily armored limousine and walking part of the way on foot, as they had done four years ago. Secret Service agents kept close watch.

In a speech of under 20 minutes, Obama, 51, sought to reassure Americans at the mid-point of his presidency and encourage them to help him take care of unfinished business. “Preserving our individual freedoms ultimately requires collective action,” he said.

Touching on volatile issues, Obama ticked off a series of liberal policies he plans to push in this second term.

Most surprising was a relatively long reference to the need to address climate change, which he mostly failed to do in his first four years.

“We will respond to the threat of climate change, knowing that the failure to do so would betray our children and future generations,” the president said.

On gay rights, Obama insisted: “Our journey is not complete until our gay brothers and sisters are treated like anyone else under the law.”

And in a nod to America's fast-growing Hispanic population that helped catapult him to re-election in November, he said there was a need to “find a better way to welcome the striving, hopeful immigrants who still see America as a land of opportunity.”

FACING PERSISTENT PROBLEMS

Obama, who won a second term by defeating Republican Mitt Romney after a bitter campaign, will now face many of the same problems that dogged his first four years: persistently high unemployment, crushing government debt and a deep partisan divide. The war in Afghanistan, which Obama is winding down, has dragged on for over a decade.

He won an end-of-year fiscal battle against Republicans, whose poll numbers have continued to sag, and appears to have gotten them to back down, at least temporarily, from resisting an increase in the national debt ceiling.

And Obama faces a less-dire outlook than he did when he took office in 2009 at the height of a deep U.S. recession and world economic crisis. The economy is growing again, though slowly.

But he still faces a daunting array of challenges.

Among them is a fierce gun-control debate inspired by a school massacre in Newtown, Connecticut, last month, a tragedy he invoked in his speech.

He said America must not rest until “all our children, from the streets of Detroit to the hills of Appalachia to the quiet lanes of Newtown, know that they are cared for, and cherished, and always safe from harm.”

Obama's appeals for bipartisan cooperation will remind many Americans of his own failure to meet a key promise when he came to power - to act as a transformational leader who would fix a dysfunctional Washington.

His speech was light on foreign policy, with no mention of the West's nuclear standoff with Iran, the civil war in Syria, dealings with an increasingly powerful China or confronting al Qaeda's continued threat as exemplified by the recent deadly hostage crisis in Algeria.

But Obama said: “We will show the courage to try and resolve our differences with other nations peacefully … We will support democracy from Asia to Africa; from the Americas to the Middle East, because our interests and our conscience compel us to act on behalf of those who long for freedom.”

U.S. Senate Republican leader Mitch McConnell, who had declared in 2010 that his top goal was to deny Obama re-election, congratulated the president and expressed a willingness to work together, saying a second term “represents a fresh start.”

But some Republicans responded skeptically. “It was a very, very progressive speech, to put it in the best possible light,” said Republican strategist Rich Galen. “He's not running for election anymore.”

Obama's ceremonial swearing-in fell on the same day as the national holiday honoring slain civil rights leader Martin Luther King Jr. - and the president embraced the symbolism. He took the oath with his hand on two Bibles - one from President Abraham Lincoln, who ended slavery, and the other from King.

After watching the rest of the parade from a bullet-proof VIP viewing stand in front of the White House, the Obamas planned to head to the two inaugural balls - rather than the 10 that were held in 2009.

DURBIN: PRIVATE PARTIES AND (MAYBE) BUDDY GUY

From dawn until dusk, Sen. Dick Durbin is scheduled to be among the constant companions of President Barack Obama, whom he joined starting with an early-morning church service near the White House.

After the swearing-in, Durbin, the No. 2 official at the Senate, said he found Obama's inaugural speech "beautiful."

"I thought he president really captured what the election was about, what the people were saying, we needed to come together -- 'We the People' and to really address the issues that are challenging our nation," said Durbin, a fellow Democrat.

After the inauguration speech, Obama and first lady Michelle Obama sat down as guests of honor at a traditional luncheon at the Capitol. Durbin was there, along with about other 200 high-level officials, including Supreme Court justices, Cabinet officials and congressional leaders.

At 9 o'clock tonight local time, Durbin said, he'll return to the White House to join the Obamas and a select group of friends, family and supporters at an exclusive celebration.

He indicated the timetable was fluid, since a similar party following the balls in 2009 didn't get going until about 11:30 p.m.

Will he make Chicago Mayor Rahm Emanuel's late-night blues party with guitarist Buddy Guy? That runs from 11 p.m. until 3 a.m. "Hope to stay awake long enough," the senator said.

Durbin, 69, a 30-year veteran of Congress, is up for re-election in 2014. He was an early supporter of Obama leading up to his 2008 run, when Democrats had to choose between candidates Obama and Hillary Rodham Clinton.

CHICAGOANS IN D.C. FEEL 'VESTED IN HIS SUCCESS'

Spencer Gould and his wife, Ardenia, of Chicago, arrived at the Capitol early enough to get seats on the front row of their section, directly center of where the president took the oath of office.

For about a minute, Gould said, he considered staying at home in Chicago’s Roseland neighborhood, but quickly realized that he could be no place else but here. Four years ago, he said, he wanted to be part of the historical moment. This time, he came to show his support.

CROWD MAKES LONG DRIVES, BRAVES THE COLD

Hundreds of thousands congregated on the National Mall on Monday, many bundled in gloves and scarves against the cold. Some stopped in front of street vendors to buy buttons with President Obama’s face on them, inaugural coffee mugs or wool hats with Obama spelled in glass beads.

Some had driven all night Sunday to make it to the ceremony by this morning.

FIRST FAMILY'S FASHION CLOSELY WATCHED BY SOME

The American fashion industry held its breath on Inauguration Day for a series of Big Reveals.

Word came within minutes that the navy check coat and dress Michelle Obama wore to the morning prayer service at St. John's church was by American designer Thom Browne, to which she added a belt for the ceremonial swearing-in. Her shoes and accessories were J.Crew. Her necklace was by Cathy Waterman.Former Obama pastor in town

FORMER PASTOR WRIGHT OFFERS ADVICE

The Rev. Jeremiah Wright, the president's former Chicago pastor whose sermons touched off a firestorm in the 2008 political campaign, urged today that Barack Obama heed the words of the late Rev. Martin Luther King Jr. and transform the country into the world's "No. 1 purveyor of peace."

Wright, in the capital today but skipping the inauguration, recalled a speech by King during the Vietnam war, when the civil rights leader denounced the U.S. as "the greatest purveyor of violence in the world."

Tribune reporters Dahleen Glanton, Katherine Skiba, Reuters and the Los Angeles Times contributed.

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Algeria vows to fight Qaeda after 38 workers killed

ALGIERS (Reuters) - Algeria's prime minister accused a Canadian of coordinating last week's raid on a desert gas plant and, praising the storming of the complex where 38 mostly foreign hostages were killed, he pledged to resist the rise of Islamists in the Sahara.

Algeria will never succumb to terrorism or allow al Qaeda to establish "Sahelistan", an Afghan-style power base in arid northwest Africa, Abdelmalek Sellal told a news conference in Algiers where he also said at least 37 foreign hostages died.

"There is clear political will," the prime minister said.

Claimed by an Algerian al Qaeda leader as a riposte to France's attack on his allies in neighboring Mali the previous week, the four-day siege drew global attention to Islamists in the Sahara and Sahel regions and brought promises of support to African governments from Western powers whose toppling of Libya's Muammar Gaddafi helped flood the region with weapons.

The attack on a valuable part of its vital energy industry raised questions about the security capacity of an establishment that took power from French colonists 50 years ago, held off a bloody Islamist insurgency in the 1990s and has avoided the democratic upheavals the Arab Spring brought to North Africa.

Sellal said a Canadian citizen whom he named only as Chedad, a surname found among Arabs in the region, was among 29 gunmen killed and added that he had "coordinated" the attack. Another three militants were taken alive and were in custody.

Among hostages confirmed dead by their own governments were three Americans, seven Japanese, six Filipinos and three Britons; others from Britain, Norway and elsewhere were listed as unaccounted for. Sellal said seven of the 37 foreign dead were unidentified, while a further five foreigners were missing.

Nearly 700 Algerians and 100 other foreigners survived.

An Algerian security source said investigators pursuing the possibility that the attackers had inside help to map the complex and gain entry were questioning at least two employees.

Prime Minister David Cameron told parliament in London that Britain would increase its help to Algeria's intelligence and security forces and might do more for France in Mali, though he ruled out sending many of its stretched armed forces to Africa.

Noting a shift in the source of threats to British interests from Afghanistan to Africa, he also noted Sellal's rundown of a multinational group of gunmen from across north and west Africa and said the region was becoming "a magnet for jihadists".

Alongside a "strong security response", however, he called for efforts to address long-standing grievances, such as poverty and political exclusion, which foster support for violence. Some militants in Algeria want autonomy for the south and complain of domination by an unchanging establishment in Algiers.

DEATH AND SURVIVAL

As Algerian forces combed the Tigantourine plant near the town of In Amenas for explosives and the missing, survivors and the bereaved told tales of terror, narrow escapes and of death.

"The terrorists lined up four hostages and assassinated them ... shot them in the head," a brother of Kenneth Whiteside told Sky News, in an account of the Briton's death given to the family by an Algerian colleague who witnessed it. "Kenny just smiled the whole way through. He'd accepted his fate."

Filipino survivor Joseph Balmaceda said gunmen used him for cover: "Whenever government troops tried to use a helicopter to shoot at the enemy, we were used as human shields."

Another Briton, Garry Barlow, called his wife from within the site before he was killed and said: "I'm sat here at my desk with Semtex strapped to my chest."

Several hostages died on Thursday when Algerian helicopters blasted jeeps in which the militants were trying to move them.

An Algerian security source had earlier told Reuters that documents found on the bodies of two militants had identified them as Canadians: "A Canadian was among the militants. He was coordinating the attack," Sellal said.

In Ottawa, Canada's foreign affairs department said it was seeking information. Security experts noted that some Canadian citizens had been involved with international militants before.

Officials have also named other militants in recent days as having leadership roles among the attackers. Veteran Islamist Mokhtar Belmokhtar claimed responsibility on behalf of al Qaeda.

In a video distributed on the Internet, the one-eyed veteran of Afghan wars of the 1980s, of Algeria's civil war and of the lucrative trans-Sahara cigarette smuggling trade, said: "We in al Qaeda announce this blessed operation."

Dressed in combat fatigues, Belmokhtar demanded an end to French attacks on Islamist fighters in Mali.

The jihadists had planned the attack two months ago in neighboring Mali, Sellal added. They had traveled from there through Niger and Libya, hence evading Algeria's strong security services, until close to In Amenas. Their aim, he said, had been to take foreign hostages to Mali, and they made a first attempt to take captives from a bus near the site early on Wednesday.

Normally producing 10 percent of Algeria's natural gas, the facility was shut down during the incident. The government said it aimed to reopen it this week, although officials at Britain's BP and Norway's Statoil, which operate the plant with Algeria's state energy firm, said the plans were not clear.

MALI CONFLICT

An Algerian newspaper said the jihadists had arrived in cars painted in the colors of Algerian state energy firm Sonatrach but registered in Libya, a country awash with weaponry since Western powers backed a revolt to oust Gaddafi in 2011.

Using his oil wealth, the Libyan dictator exercised a degree of influence in the region and the consequences of his death are still unfolding.

In a sign of the complexities wrought by the Arab Spring revolts, Egypt, a former military dictatorship now led by one of the generals' Islamist foes, criticized France's intervention in Mali on Monday. President Mohamed Mursi called instead for more spending to address rebels' grievances and warned that the military moves would "inflame the conflict in this region".

The bloodshed also increased the strains in Algeria's long fraught relations with Western powers, where some complained about being left in the dark while the decision to storm the compound was being taken.

But this week, Britain and France both defended the military action by Algeria, the strongest military power in the Sahara and an ally the West needs in combating the militants.

Chafik Mesbah, a former Algerian presidential security adviser, said: "The West did not criticize Algeria because it knows an assault was inevitable in the circumstances ... The victims were a minimum price to pay to solve the crisis."

(Writing by Alastair Macdonald; Editing by Mark Heinrich)

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Euro zone surveys to offer hope as Japan eases

LONDON (Reuters) - The prospect of stronger European manufacturing surveys and decisive monetary easing in Japan this week ought to bolster confidence that the global economy can look forward to better days.

It is definitely not yet time to break open the champagne.

The index derived from polls of purchasing managers across the euro zone, though recovering, is likely to remain well below the 50 threshold that signals expansion.

If the Bank of Japan bows to political pressure and relaxes policy more boldly, it is because the country's noxious cocktail of a huge debt burden, deflation and dwindling external surpluses threatens an eventual fiscal crunch.

And an expected contraction in Britain's economy when fourth-quarter figures are released on Friday will be a reminder, as was Germany's grim end to 2013, that Europe has to dig itself out of a deep hole.

"The real hard economic data are still very negative," said Bert Colijn, an economist in Brussels with the Conference Board, a business research group. "There are improvements, but it still doesn't look that bright."

However, he said the economic news from the euro zone rim was not quite as troubling, and the mood was brightening among the core countries of the single currency area.

Lena Komileva, managing director of G+ Economics, a London consultancy, said it was hard to argue against investors' new-found appetite for riskier assets given that the volatility of equity prices was approaching historical lows and yields on corporate bonds had fallen sharply.

"Financial stress indicators signal a significant improvement in the health of the global economy," she said.

Friday's solid fourth-quarter economic data from China reinforced that view.

PURCHASERS' PROGRESS

Economists polled by Reuters expect an uptick in Thursday's advance purchasing managers' indexes for France and Germany as well as for the euro zone as a whole.

Germany's IFO business confidence survey on Friday is also projected to have risen for the third month in a row.

"The fact that business confidence measures are coming in more positive is a good sign," Colijn commented.

Commerzbank said its leading indicator for the German economy reached an all-time high in December after the European Central Bank's pledge to buy the bonds of troubled economies eased fears of a break-up of the euro.

"We assume that increasingly more companies are gaining confidence and viewing business prospects more positively," said Commerzbank economist Ralph Solveen.

BNP Paribas is also bullish on Germany and is looking for a marked pick-up in growth.

In addition to the ECB's safety net, the global manufacturing cycle is pointing up, while a strong labor market and easy financial conditions are supporting consumption, economists Evelyn Herrmann and Ken Wattret said in a report.

"Moreover, should the global economy surpass expectations and euro zone market stress ease further, upside surprises would be likely to follow. A key issue in this respect would be higher export growth and confidence triggering a stronger rebound in investment," they said.

That is exactly what Japan would like to see, too.

To that end, the government of new Prime Minister Shinzo Abe and the Bank of Japan have agreed to set 2 percent inflation as a new target, supplanting a softer 1 percent ‘goal', according to sources familiar with the central bank's thinking.

They said the BOJ, which meets on Monday and Tuesday, will also consider making an open-ended commitment to buy assets until the target is in sight.

FOR AND AGAINST EASING

Credit Suisse's global equity strategists said an easier monetary policy is justified to cushion the significant fiscal tightening on which Japan will have to embark before long to whittle down a government debt that has reached some 220 percent of national income.

This task is all the more pressing because Japan is moving towards a current account deficit, which will make it more reliant on foreign investors to finance its budget shortfall, Credit Suisse argued.

Trade figures on Thursday will underline the deterioration in Japan's external accounts, with economists polled by Reuters forecasting the sixth consecutive monthly deficit.

Nomura reckons the deficit for all of 2012 widened to 6.6 trillion yen ($73.4 billion) from 2.7 trillion in 2011.

Japanese equities have surged in anticipation of a more aggressive monetary policy stance, but not everyone is happy.

The accompanying slump in the yen has prompted Russia's deputy central bank governor to warn of a new round of ‘currency wars' and the medium-term risk of running ultra-loose monetary policies is likely to be a theme of the World Economic Forum in Davos, which opens on Wednesday.

"I'm pretty worried about the new policies of Japan's newly elected government," German Finance Minister Wolfgang Schaeuble said last week. "When you think of the surplus of liquidity on global financial markets, it is fuelled further by a wrong understanding of central bank policy.

(Editing by Susan Fenton)

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Djokovic plays another Australian Open marathon

MELBOURNE, Australia (AP) — The opponent was different, the match three rounds earlier. Still, the result gave Novak Djokovic a familiar feeling, and another chance to rip off his shirt in celebration.

Djokovic needed just over 5 hours to beat Stanislas Wawrinka 1-6, 7-5, 6-4, 6-7 (5), 12-10 in a fourth-round match Sunday night at the Australian Open, on the same court where he needed 5:53 to beat Rafael Nadal in last year's final.

"I just had flashback of 2012," Djokovic said. "It was maybe 45 minutes less this match than the one 12 months ago, but still it was still as exciting. I tried to enjoy the moment and couldn't ask for more. What a match point ... unbelievable."

He wasn't exaggerating about the match point. On his third attempt to end it, his backhand cross-court shot zipped past the valiant Wawrinka, who, Djokovic conceded, had outplayed him for most of the night.

"He came up with great tactics today," Djokovic said. "He didn't give me a lot of the same rhythm that I could get into the match. He was the one being in charge. I was passive. "

The win was Djokovic's 18th in a row at Melbourne Park after winning the last two Australian titles and advanced the Serbian star to the quarterfinals of his 15th consecutive major tournament.

Wawrinka, who had been receiving treatment to his upper leg muscles from late in the fourth set, said he would take more positives than negatives out of the match. He led 5-2 in the second set after outplaying Djokovic in the first.

"For sure, I think the best match I have ever played," Wawrinka said. "I fought like a dog like always. At 4-4 in the final set, I thought I might have won the match, but he was just better."

Djokovic will next play No. 5 Tomas Berdych, who needed five match points in the tiebreaker before beating South Africa's Kevin Anderson 6-3, 6-2, 7-6 (13).

Fourth-seeded David Ferrer won 6-2, 6-1, 6-4 over No. 16 Kei Nishikori of Japan to set up a quarterfinal against fellow Spaniard Nicolas Almagro, who was leading 6-2, 5-1 when No. 8 Janko Tipsaveric retired from their fourth-round match.

The Djokovic-Wawrinka match overshadowed Maria Sharapova's accomplishment earlier in the day.

Sharapova advanced to the quarterfinals with a 6-1, 6-0 win over Kirsten Flipkens in another impressive display — last year's French Open champion has lost just five games through four rounds, breaking the Australian Open mark of eight held previously by eventual champions Steffi Graf and Monica Seles.

"A couple that I've won, I felt like I was playing great from the beginning and I was able to carry that through the whole tournament," said Sharapova, who won titles in 2004 at Wimbledon, 2006 at the U.S. Open and 2008 in Australia before completing her career Grand Slam with a victory at last year's French Open.

She can't remember ever winning so few games through four rounds of a tournament, but realizes this means nothing if she doesn't make it to the latter stages.

"Well, I'm certainly happy to be playing this well but ... it only gets tougher from here," said Sharapova, who is playing her first tournament of 2013 after withdrawing from a warm-up event at Brisbane because of an injured right collarbone.

She next plays fellow Russian Ekaterina Makarova, who beat fifth-seeded Angelique Kerber 7-5, 6-4. Sharapova defeated Makarova in the quarterfinals here last year on her way to the final, which she lost in straight sets to Victoria Azarenka.

Li Na, who reached the final here in 2011 and won the French Open later that year, saved a set point in the tiebreaker before beating Julia Goerges 7-6 (6), 6-1. She'll play No. 4 Agnieszka Radwanska, who beat No. 13 Ana Ivanovic 6-2, 6-4 for her 13th consecutive win. Radwanska won the Auckland and Sydney titles before coming to Melbourne.

On Monday, Roger Federer plays Milos Raonic, and U.S. Open champion Andy Murray faces Gilles Simon. Azarenka, Serena Williams and fellow American Sloane Stephens also have their fourth-round matches.

Thy will have a tough time matching the spectacle of Sunday's late-night encounter.

Djokovic had beaten Wawrinka — the perennial No. 2 among Swiss tennis players to 17-time major winner Roger Federer — in their 10 previous matches. He hadn't lost a head-to-head since 2006 and had won 11 straight sets between them.

Wawrinka stunned the top-ranked Djokovic with three service breaks in the first set and had that 5-2 lead in the second before the 25-year-old Serb rallied by winning six consecutive games. But just as Djokovic seemed to be taking control, Wawrinka launched his own comeback to win a long tiebreaker and force a fifth set.

Djokovic got to serve first in the fifth, giving him a psychological edge as long as he held his serve.

Wawrinka had game point in the 22nd game but let Djokovic get on a roll. He saved his first match point with a service winner, then saved another two minutes later.

At 1:40 a.m. local time, Wawrinka was whacking his head with the racket and biting the ball after giving Djokovic another match point.

Moments later, he was slumped on the court, exhausted. Djokovic raised both arms, walked to the net and embraced his beaten rival, then pulled of his shirt and flexed.

"Give him credit, he made me run all over the court," Djokovic said. "He never gave me the same ball. He was aggressive from both sides. I didn't know what was coming next."

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Giant Mars Crater Shows Evidence of Ancient Lake

New photos of a huge crater on Mars suggest water may lurk in crevices under the planet’s surface, hinting that life might have once lived there, and raising the possibility that it may live there still, researchers say.

Future research looking into the chances of life on Mars could shed light on the origins of life on Earth, scientists added.

The discovery came from a study of images by NASA’s powerful Mars Reconnaissance Orbiter that revealed new evidence of a wet underground environment on the Red Planet. The images focused on the giant McLaughlin Crater, which is about 57 miles (92 kilometers) wide and so deep that underground water appears to have flowed into the crater at some point in the distant past.

Today, the crater is bone-dry but harbors clay minerals and other evidence that liquid water filled the area in the ancient past.

“Taken together, the observations in McLaughlin Crater provide the best evidence for carbonate forming within a lake environment instead of being washed into a crater from outside,” study lead author Joseph Michalski, of the Planetary Science Institute in Tucson, Ariz., and London’s Natural History Museum, said in a statement. [Search for Water on Mars (Photos)]

A wet Mars underground

Space agencies have deployed many missions to Mars over the decades to explore how habitable its surface may have been or is today. However, the Martian surface has been extremely cold, arid and chemically hostile to life as we know it for most of the history of Mars.

Instead of scanning the surface of Mars for life, scientists have suggested the most viable habitat for ancient simple life may have been in Martian water hidden underground.

On Earth, microbes up to 3 miles (5 km) or more underground make up perhaps half of all of the planet’s living matter. Most of these organisms represent some of the most primitive kinds of microbes known, hinting that life may actually have started underground, or at least survived there during a series of devastating cosmic impacts known as the Late Heavy Bombardment that Earth and the rest of the inner solar system endured about 4.1 billion to 3.8 billion years ago.

Since Mars has less gravity — a surface gravity of a little more than one-third Earth’s — its crust is less dense and more porous than that of our planet, which means that more water can leak underground, researchers said. Wherever there is liquid water on Earth, there is virtually always life, and microbes underground on Mars could be sustained by energy sources and chemical reactions similar to those that support deep-dwelling organisms on Earth.

“The deep crust has always been the most habitable place on Mars, and would be a wise place to search for evidence for organic processes in the future,” Michalski told SPACE.com. [Search for Life on Mars: A Timeline (Gallery)]

Subterranean Mars

While researchers currently have no way to drill deep underground on the Red Planet, they can nevertheless spot hints of what subterranean Mars is like by analyzing deep rocks exhumed by erosion, asteroid impacts or materials generated by underground fluids that have welled up to the surface.

Such upwelling would first occur in deep basins like McLaughlin Crater — as the lowest points on the surface, they would be where underground water reserves would most likely get exposed.

Scientists focused on McLaughlin Crater because it is one of the deepest craters on Mars. McLaughlin is about 1.3 miles (2.2 km) deep and is located in Mars’ northern hemisphere.

The mineral composition of the floor of McLaughlin Crater suggests there was a lake made of upwelled groundwater there. Channels seen on the crater’s eastern wall about 1,650 feet (500 meters) above its floor also hint at the former presence of a lake surface.

Michalski was actually originally trying to disprove the idea that groundwater breached the surface in many locations on Mars.

“Lo and behold, there was strong evidence for that process in this crater,” he said. “Science is special because we are allowed to change our minds.”

An ancient groundwater lake

The researchers estimate that a lake existed at McLaughlin Crater for an unknown duration between 3.7 billion and 4 billion years ago. “That makes the deposits as old as or older than the oldest rocks known to exist on Earth,” Michalski said.

Mounds seen on the crater floor may have come from landslides or subsequent meteor impacts. These are important because they may have rapidly buried crater floor sediments.

“That is really cool because rapid burial is the scenario that is most advantageous for preservation of organic material, if any was present at that time,” Michalski said.

Since life on Earth may have begun underground, learning more about any underground life that might have lived — or may still live — on Mars could shed light on the origins of life on Earth, researchers said.

“We should give serious consideration to exploring rocks representing subsurface environments in future missions,” Michalski said. “That doesn’t mean drilling, but instead exploring rocks formed from upwelling groundwater, or rocks naturally exhumed from the subsurface by meteor impact.”

Michalski noted that some people may ask, “‘Why do I hear about the detection of water or possibility of life on Mars all the time?’ The answer is because Mars is habitable in more ways than we ever realized for many years, and we are finding water in many forms and environments on Mars — many more than we predicted for a long time.”

The ingredients for life the researchers describe, “including energy sources, would have been more available early in Mars’ history, but it doesn’t take too much imagination to picture a scenario in which the subsurface is habitable today,” Michalski said. He cautioned, however, “that is much different from saying that life is there today.”

The scientists detailed their findings online Jan. 20 in the journal Nature Geoscience.

Follow SPACE.com on Twitter @Spacedotcom. We’re also on Facebook & Google+.

Copyright 2013 SPACE.com, a TechMediaNetwork company. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
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Why Hollande must 'reset presidency'

John Gaffney says Francois Hollande, seen here at the Elysee Palace on January 11, 2013, needs to rethink his presidency.

STORY HIGHLIGHTS

• French President Francois Hollande and the country's Socialists are in a strong position


• Despite this, Hollande has made little progress since his election, says John Gaffney


• Gaffney: Hollande "like a stunned bunny in the headlights" of economic reality


• President must act now, and act decisively, to make France admired again, says Gaffney

Editor's note: John Gaffney is professor of politics and co-director of the Aston Centre for Europe, at the UK's Aston University.

(CNN) -- France is the fifth richest country in the world. It is the world's sixth largest exporter. It has the second largest diplomatic network in the world, after the US. It is a member of the UN Security Council. It is the most visited country in the world, welcoming 82 million visitors last year. It is a major nuclear power. It is the true founder of the European Union. And it is in a terrible mess.

Socialist Francois Hollande was elected president almost a year ago, ousting the deeply unpopular "Mr Bling," President Nicolas Sarkozy.

John Gaffney is professor of politics at Aston University in the UK.

France's Socialist left have never been so strong politically: They control the presidency, the government, both houses of parliament, the regions, and all the big towns and cities. And in his first eight months in office, Hollande has done virtually nothing. He is like a stunned bunny in the headlights of an oncoming vehicle called "Harsh Economic Reality."

Hollande has three fundamental problems. The first is that he doesn't have a plan. Tens of thousands of people are losing their jobs each week, and it is going to get worse and worse.

France faces a huge public spending crisis - in health, pensions, and now welfare, and a government debt of 90% of GDP. Not one single adequate measure has been put forward, nor even proposed in his eight months in office.

The second problem is that he lacks the political will to break the log-jams in French society: Making industry more competitive, reducing government spending. He cannot do these things because one of the constituencies he needs to take on -- the huge public sector -- is made up of the people who voted him into power.

He could take on the equally irresponsible banks -- they didn't vote for him -- but he risks sending the economy into a tailspin if he does.

And not only does he need to address the structural issues in France's economy and society, but he made the mistake of telling everyone he could solve the country's problems painlessly, or by taxing the super-rich, and he is not managing to do that either, so he is just taxing everyone else.

Now he faces the worst situation possible because no one believes a word he says. He delivered a robust New Year's message last week, watched by millions; yet 75% don't believe he can deliver on its promise.

In fact, the New Year's Eve wishes everyone in France did believe were the Churchillian tones of German Chancellor Angela Merkel. Her message was essentially the opposite of Hollande's bizarre optimism, which seems to involve little more than following the "Keep Calm and Carry On" mantra. But waiting for the upturn will find France unprepared and in a worse predicament than Spain or Italy, who are now busily restructuring their economies.

The third and fundamental problem Hollande has is that he does not understand the nature of the office he holds, the French Presidency of the Republic. If he did, he might find a way forward. In his New Year message he likened himself to a ship's captain. But he has to be one, not just say he is one. The office of French President is a highly complex mixture of the political and the symbolic. But it is fundamentally about leadership; that is leading not following, and taking the French with him.

Hollande urgently needs to reset his Presidency - and there are a few clear rules to do so:

He needs to take on the banks where necessary, take on the benefits system, the impediments to innovation and to setting up new businesses, take on the appalling situation of France's forgotten inner city misery; his need not be a hard-nosed liberal agenda.

No government in French history is in a better position to make France a more equal society while making it and its economy more efficient. He should focus on young people trying to set up their own business. Focus on small businesses generally. Drag France away from its drive to over regulate everything and throttle innovation. Tax the super-rich if necessary, as long as it contributes to the overall solution he is aiming for.

He also needs to get into step with Merkel and lead Europe with Germany, not pretend he is the spokesperson for the irresponsible spenders.

But above all, he should use the presidency in a more imaginative way: Begin an ongoing and exciting conversation with the French. No other office in the world, not even the presidency of the US, offers such scope for an intimacy between leader and population.

He should boldly use the referendum to build up and direct the conversation towards change and innovation. If the vested interests won't move, bring in the people. Use the referendum like de Gaulle did between 1958 and 1962, as a major political weapon to break the deadlocks in French political society.

In Europe and the wider world he has to make France admired again, as it once was. Inside France, he has to forget about not upsetting anyone. In fact, he should have a plan that upsets just about everybody. The French would love him for it.

So far it remains to be seen what impact his first major foreign policy challenge -- in Mali -- will have. As French forces, with the backing of the international community, go into the West African country to take on Islamist rebels, the coming weeks will tell us whether fate just gave to him the best or the worst opportunity to show the French, and the rest of the world, what he is made of.

The opinions expressed in this commentary are solely those of John Gaffney.

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Obama sworn in for second term in White House ceremony

Chicago Tribune reporter Jenniffer Weigel talks with Chicago Tribune/Washington D.C. Bureau reporter Katherine Skiba about the demand for inauguration tickets and the comparison between this year and 2009. (Posted: January 20, 2013)

Washington—

  President Barack Obama took the official oath for his second term on Sunday at the White House in a small, private ceremony that set a more subdued tone compared to the historic start of his presidency four years ago.




Gathered with his family in the Blue Room on the White House's ceremonial main floor, Obama put his hand on a family Bible and recited the 35-word oath that was read out loud by U.S. Chief Justice John Roberts.

"I did it," Obama said as he hugged his wife, Michelle, and daughters Sasha and Malia. "Thank you, sweetie," he told Michelle when she congratulated him. "Good job, Dad. You didn't mess up," 11-year-old Sasha Obama told her father.

It was a low-key start to the first African-American U.S. president's second term, which is likely to be dominated - at least at the start - by budget fights with Republicans and attempts to reform gun control and immigration laws.

Obama, 51, will be sworn in publicly on Monday outside the West Front of the Capitol overlooking the National Mall in front of as many as 800,000 people, a much bigger ceremony replete with a major address and a parade.

Downtown Washington was all but locked down with heavy security. Many streets were closed, lined with barricades. Police sirens blared. Outside the White House on Pennsylvania Avenue, an elaborate presidential viewing stand encased in bullet-proof glass was set up for Obama and other VIPs to watch the parade.

Sunday's ceremony, shown live on television, was needed because the U.S. Constitution mandates that the president take office on January 20. Planners opted to go with a private ceremony on the actual date and then hold the ceremonial inaugural activities the next day.

By Monday, Obama will have been sworn in four times, two for each term, putting him equal to Franklin Roosevelt, who won four terms. A second Obama swearing-in was deemed necessary in 2009 when Roberts flubbed the first one. On Sunday, Roberts read the oath carefully from a card and there were no mistakes.

Obama, who won a second four years on November 6 by defeating Republican Mitt Romney after a bitter campaign, opens round two facing many of the same problems that dogged his first term: persistently high unemployment, crushing government debt and a deep partisan divide over how to solve the issues.

This has taken some of the euphoria out of his second inauguration, with TV pundits debating how successful he will be and whether he can avoid policy over-reaching that often afflicts two-term presidents.

If the president harbored any doubts himself, there was no sign of it as he attended a rousing service at Metropolitan African Methodist Episcopal Church in downtown Washington where he and Michelle, who is sporting a new hair style featuring bangs, clapped and swayed to gospel music.

"Forward, forward," shouted Reverend Ronald Braxton to his congregation, echoing an Obama election campaign slogan.

Early Sunday morning, Vice President Joe Biden was sworn in by Supreme Court Justice Sonia Sotomayor, making her the first Hispanic judge to administer an oath of office for one of the nation's two highest offices.

Obama and Biden then joined forces to lay a wreath of flowers at the Tomb of the Unknowns at Arlington National Cemetery in a solemn remembrance of those killed in the line of duty.

Biden's family, about 120 guests and a few reporters witnessed the private swearing-in ceremony in the main foyer of his Naval Observatory residence. Biden used a Bible with a Celtic cross on the cover that has been in his family since 1893.

The audience for Monday's ceremony is not expected to be as big as in 2009 when a record 1.8 million people crammed into the National Mall to witness the swearing-in. Turnout is projected at 600,000 to 800,000, with millions more watching on television.

INAUGURAL ADDRESS IS CENTERPIECE

Obama's Inauguration Day speech will set the tone for the start of his second term and gives him a chance to lay out his vision on where he would like to lead the country. He has been drafting the speech on yellow legal pads and working with his speech writers.

Senior Obama adviser David Plouffe told CNN that Obama would talk about how "our political system doesn't require us to resolve all of our disputes or settle all of our differences," but that it does encourage common ground.

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Algeria toll rises as attack claimed for al Qaeda

ALGIERS, Algeria (Reuters) - The death toll has risen to at least 48 hostages killed during a four-day siege at a gas plant deep in the Sahara as a veteran Islamist fighter claimed responsibility on behalf of al Qaeda for the attack.

Prime Minister Abdelmalek Sellal is expected to give details at a Monday news conference about one of the worst international hostage crises in decades, which left American, British, French, Japanese, Norwegian and Romanian workers dead or missing.

A security source said on Sunday Algerian troops had found the bodies of 25 hostages, raising the number of militants and their captives killed to at least 80. He said six militants were captured alive and troops were still searching for others.

One-eyed veteran Islamist fighter Mokhtar Belmokhtar claimed responsibility on Sunday for the attack on behalf of al Qaeda.

"We in al Qaeda announce this blessed operation," he said in a video, according to Sahara Media, a regional website. He said about 40 attackers participated in the raid, roughly matching the government's figures for fighters killed and captured.

The fighters swooped out of the desert and seized the base on Wednesday, capturing a plant that produces 10 percent of Algeria's natural gas exports, as well as a nearby residential barracks.

They demanded an end to French air strikes against Islamist fighters in neighboring Mali that had begun five days earlier. However, U.S. and European officials doubt such a complex raid could have been organized quickly enough to have been conceived as a direct response to the French military intervention.

The siege turned bloody on Thursday when the Algerian army opened fire saying fighters were trying to escape with their prisoners. Survivors said Algerian forces blasted several trucks in a convoy carrying both hostages and their captors.

Nearly 700 Algerian workers and more than 100 foreigners escaped, mainly on Thursday when the fighters were driven from the residential barracks. Some captors remained holed up in the industrial complex until Saturday when they were overrun.

The bloodshed has strained Algeria's relations with its Western allies, some of whom have complained about being left in the dark while the decision to storm the compound was being taken. Nevertheless, Britain and France both defended the Algerian military action.

"It's easy to say that this or that should have been done. The Algerian authorities took a decision and the toll is very high but I am a bit bothered ... when the impression is given that the Algerians are open to question," said French Foreign Minister Laurent Fabius. "They had to deal with terrorists."

British Prime Minister David Cameron said in a televised statement: "Of course people will ask questions about the Algerian response to these events, but I would just say that the responsibility for these deaths lies squarely with the terrorists who launched this vicious and cowardly attack.

"We should recognize all that the Algerians have done to work with us and to help and coordinate with us. I'd like to thank them for that. We should also recognize that the Algerians too have seen lives lost among their soldiers."

Algeria had given a preliminary death toll of 55 people killed - 23 hostages and 32 militants - on Saturday and said it would rise as more bodies were found.

The security source said that toll did not include the bodies of 25 hostages found on Sunday, which meant the total number of captives killed - foreign and local - was at least 48. The search was not over, and more could yet be found, he said.

Among foreigners confirmed dead by their home countries were three Britons, one American and two Romanians. The missing include at least 10 Japanese, five Norwegians, three other Britons, and a British resident. The security source said at least one Frenchman was also among the dead.

LAST WORDS?

Alan Wright, now safe at home in Scotland, said he had escaped with a group of Algerian and foreign workers after hiding for a day and a night. While hiding inside the compound, he managed to call his wife at home with their two daughters.

"She asked if I wanted to speak to Imogen and Esme, and I couldn't because I thought, I don't want my last ever words to be in a crackly satellite phone, telling a lie, saying you're OK when you're far from OK," he recalled to Sky News.

Despite the incident, Algeria is determined to press on with its energy industry. Oil Minister Youcef Yousfi visited the site and said physical damage was minor, state news service APS reported. The plant would start back up in two days, he said.

The Islamists' assault has tested Algeria's relations with the outside world and exposed the vulnerability of multinational oil operations in the Sahara.

Algeria, scarred by the civil war with Islamist insurgents in the 1990s which claimed 200,000 lives, insisted from the start of the crisis there would be no negotiation in the face of terrorism.

France especially needs close cooperation from Algeria to crush Islamist rebels in northern Mali.

(Additional reporting by Balazs Koranyi in Oslo, Estelle Shirbon and David Alexander in London, Brian Love in Paris and Daniel Flynn in Dakar; Writing by Peter Graff; Editing by Sophie Hares and Myra MacDonald)

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Wall Street Week Ahead: Earnings, money flows to push stocks higher

NEW YORK (Reuters) - With earnings momentum on the rise, the S&P 500 seems to have few hurdles ahead as it continues to power higher, its all-time high a not-so-distant goal.

The U.S. equity benchmark closed the week at a fresh five-year high on strong housing and labor market data and a string of earnings that beat lowered expectations.

Sector indexes in transportation <.djt>, banks <.bkx> and housing <.hgx> this week hit historic or multiyear highs as well.

Michael Yoshikami, chief executive at Destination Wealth Management in Walnut Creek, California, said the key earnings to watch for next week will come from cyclical companies. United Technologies reports on Wednesday while Honeywell is due to report Friday.

"Those kind of numbers will tell you the trajectory the economy is taking," Yoshikami said.

Major technology companies also report next week, but the bar for the sector has been lowered even further.

Chipmakers like Advanced Micro Devices , which is due Tuesday, are expected to underperform as PC sales shrink. AMD shares fell more than 10 percent Friday after disappointing results from its larger competitor, Intel . Still, a chipmaker sector index <.sox> posted its highest weekly close since last April.

Following a recent underperformance, an upside surprise from Apple on Wednesday could trigger a return to the stock from many investors who had abandoned ship.

Other major companies reporting next week include Google , IBM , Johnson & Johnson and DuPont on Tuesday, Microsoft and 3M on Thursday and Procter & Gamble on Friday.

CASH POURING IN, HOUSING DATA COULD HELP

Perhaps the strongest support for equities will come from the flow of cash from fixed income funds to stocks.

The recent piling into stock funds -- $11.3 billion in the past two weeks, the most since 2000 -- indicates a riskier approach to investing from retail investors looking for yield.

"From a yield perspective, a lot of stocks still yield a great deal of money and so it is very easy to see why money is pouring into the stock market," said Stephen Massocca, managing director at Wedbush Morgan in San Francisco.

"You are just not going to see people put a lot of money to work in a 10-year Treasury that yields 1.8 percent."

Housing stocks <.hgx>, already at a 5-1/2 year high, could get a further bump next week as investors eye data expected to support the market's perception that housing is the sluggish U.S. economy's bright spot.

Home resales are expected to have risen 0.6 percent in December, data is expected to show on Tuesday. Pending home sales contracts, which lead actual sales by a month or two, hit a 2-1/2 year high in November.

The new home sales report on Friday is expected to show a 2.1 percent increase.

The federal debt ceiling negotiations, a nagging worry for investors, seemed to be stuck on the back burner after House Republicans signaled they might support a short-term extension.

Equity markets, which tumbled in 2011 after the last round of talks pushed the United States close to a default, seem not to care much this time around.

The CBOE volatility index <.vix>, a gauge of market anxiety, closed Friday at its lowest since April 2007.

"I think the market is getting somewhat desensitized from political drama given, this seems to be happening over and over," said Destination Wealth Management's Yoshikami.

"It's something to keep in mind, but I don't think it's what you want to base your investing decisions on."

(Reporting by Rodrigo Campos, additional reporting by Chuck Mikolajczak and Caroline Valetkevitch; Editing by Kenneth Barry)

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Armstrong's enemies find vindication, sadness

First shunned, then vilified by Lance Armstrong, Mike Anderson had to move to the other side of the world to get his life back.

Now running a bike shop outside of Wellington, New Zealand, Armstrong's former assistant watched news reports about his former boss confessing to performance-enhancing drug use with only mild interest. If Anderson never hears Armstrong's voice again, it would be too soon.

"He gave me the firm, hard push and a shove," Anderson said in a telephone interview with The Associated Press. "Made my life very, very unpleasant. It was an embarrassment for me and my family to be portrayed as liars, to be called a disgruntled employee, implying there was some impropriety on my part. It just hurt. It was completely uncalled for."

Anderson is among the dozens, maybe hundreds, of former teammates, opponents and associates to receive the Armstrong treatment, presumably for not going along with the party line — that the now-disgraced, seven-time Tour de France cyclist didn't need to cheat to win.

The penalties for failing to play along were punitive, often humiliating, and now that Armstrong has admitted in an interview with Oprah Winfrey that he's a doper, a liar and a bully, many of those who saw their lives changed, sometime ruined, are going through a gamut of emotions.

Some feel vindicated, others remain vengeful. Some are sad, while many others are simply wrung out.

"He's damaged a lot of people's lives," said Betsy Andreu, whose husband, Frankie, was culled from Armstrong's team for not agreeing to dope. "He has damaged the sport of cycling. Frankie was fired for not getting on the program. I never thought this day would come but it's so incredibly sad."

Before his interview with Winfrey aired, Armstrong reached out to the Andreus to apologize but the planned reconciliation did not work. In fact, Armstrong's interview only made things worse, when he refused to confirm what the Andreus testified to under oath — that they had heard the cyclist admit to doping while meeting with doctors treating him for cancer at an Indiana hospital in 1996.

Regardless of whether Armstrong says more about that, there's no denying that life for the Andreus changed when they refused to go along.

"Frankie's career was definitely cut short. His career was ruined early," Betsy Andreu said. "You have riders out there whose careers never happened" because of Armstrong.

And some whose careers were cut short.

Filippo Simeoni was a talented, young rider who dared admit to doping and told authorities he received his instructions from physician Michele Ferrari, who also advised Armstrong during his career. After that 2002 testimony, Armstrong branded Simeoni a liar. He went so far as to humiliate Simeoni at the 2004 Tour de France, when he chased down the Italian rider during a breakaway and more or less ordered him to fall back in line. Later in the race, and with a TV camera in his face, Armstrong put his finger to his lips in a "silence" gesture. After the stage, he said he was simply protecting the interests of the peloton.

Simeoni received a different message.

"When a rider like me brushed up against a cyclist of his caliber, his fame and his worth — when I clashed with the boss — all doors were closed to me," Simeoni said. "I was humiliated, offended, and marginalized for the rest of my career. Only I know what that feels like. It's difficult to explain."

Anderson certainly can.

In a story he wrote for Outside Magazine last August, Anderson detailed a business relationship with Armstrong that began in 2002 with an email from Armstrong promising he would finance Anderson's bike shop when their work together was done. Anderson, a bike mechanic working in Armstrong's hometown of Austin, Texas, essentially became the cyclist's personal assistant, his responsibilities growing as the years passed. One of his tasks was making advance trips to Armstrong's apartment in Spain to prepare it for his arrival.

Anderson says the relationship began to sour after he came upon a box in Armstrong's bathroom labeled "Androstenedione," the banned substance most famously linked to Mark McGwire. The box, Anderson wrote, was mysteriously gone the next time he entered the apartment.

Time passed. Anderson bore witness to more and more things that didn't feel right. Armstrong, sensing his employee's discomfort, became more and more distant. Finally, Anderson wrote, Armstrong severed ties, asking Anderson to sign a nondisclosure agreement "that would have made me liable for a large sum of money if I even mentioned ever having worked for Armstrong."

Anderson's refusal to do that led to lawyers and lawsuits — with Armstrong accusing Anderson of extortion and Anderson accusing Armstrong of wrongful dismissal, breach of contract, and defamation. The cases were eventually settled for undisclosed terms.

But Anderson took his share of hits along the way.

"Austin was not a comfortable place for me after that," he said. "It had been my home for some years. I had enjoyed a very good reputation. I couldn't get a job in the bicycle business, certainly not one that was a fair placement for my skill and experience."

He ended up in New Zealand, where his wife's brother has roots, and is doing fine, now.

"I got a fair shake from some local investors who believe in me and we've been at it for four years," Anderson said. "The kids are clothed and fed and I don't really have any complaints."

Stories such as these — about the havoc Armstrong unleashed on people's lives — come from seemingly every corner: bike mechanics, multimillionaire businessmen, trainers, masseuses, wives, cyclists both at the front and back of the peloton.

Tyler Hamilton was among Armstrong's key teammates during his first three Tour de France victories. His tell-all interview on "60 Minutes" in 2011, combined with his testimony and a book he wrote last year, played a key part in the unraveling of the Armstrong myth.

Hamilton watched Armstrong's confession with little emotion but with a modicum of hope.

"It's been a sad story for a lot of people," Hamilton said. "But I think we'll look back on this period and, hopefully not too far down the road, we can say it was, in the end, a good thing for the sport of cycling."

___

AP Sports Writer Jerome Pugmire contributed to this report.

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