The world's richest man, telecom tycoon Carlos Slim, gave a sneak peak Tuesday at the new museum where he plans to show his vast collection of art and collectibles, including priceless pieces by Mexican muralist Diego Rivera, French sculptor Auguste Rodin and Italian master Leonardo da Vinci.

The Soumaya museum — named after the tycoon's late wife — opens to the public on March 29 and admission will be free.

The crumbling of Moammar Gadhafi's regime could shed light on one of the most enduring mysteries in Lebanon: the fate of Moussa al-Sadr, a popular Shiite cleric who vanished 33 years ago during a trip to Libya.

Since the uprising began, members of Libya's opposition have broken a three-decade silence on the issue, with some saying the 82-year-old cleric is languishing in a Libyan prison.

Spine surgeon Anders Cohen puts a lot of stock in patients' expectations of pain relief. He prefers to operate only on those who "grab you by the collar and say, `I can't take it anymore.'"

New brain research proves doctors like Cohen are onto something: Pessimism can override the effectiveness of even powerful treatments.

An Indian court sentenced 11 Muslims to death Tuesday after finding them guilty of setting a train fire that killed 60 Hindu nationalists nine years ago and triggered one of India's worst outbursts of communal violence.

Judge P.R. Patel last week convicted 31 Muslims of being part of a criminal conspiracy that led to the deaths of 60 people when a Sabarmati Express train coach packed with Hindu pilgrims was set on fire in western Gujarat state in 2002.

Google has tweaked the formulas steering its Internet search engine to take the rubbish out of its results. The overhaul is designed to lower the rankings of what Google deems "low-quality" sites.

That could be a veiled reference to such sites as Demand Media's eHow.com, which critics call online "content farms" — that is, sites producing cheap, abundant, mostly useless content that ranks high in search results.

The chief executive of Saudi Arabia's state-run oil giant says it has stepped in to compensate for an export shortfall stemming from the unrest in Libya.

Saudi Aramco's Khalid Al Falih declined on Monday to specify how much additional oil Saudi Arabia — the de facto leader of the Organization of the Petroleum Exporting Countries — has pumped into the market.

Israel's defense minister said Monday his country must look beyond the risks that might arise from the changes sweeping the Mideast and seek opportunities to move peacemaking forward — including possible peace talks with Syria.

Defense Minister Ehud Barak told Israel Radio that Syria appears to be signaling it might be willing to reach an accord.

Frank Buckles, who lied about his age to get into uniform during World War I and lived to be the last surviving U.S. veteran of that war, has died. He was 110.

Buckles, who also survived being a civilian POW in the Philippines in World War II, died peacefully of natural causes early Sunday at his home in Charles Town, biographer and family spokesman David DeJonge said in a statement. Buckles turned 110 on Feb. 1 and had been advocating for a national memorial honoring veterans of World War I in Washington, D.C.

Seventeen people were electrocuted during a freak accident at a large pre-Carnival parade, Brazilian police said Monday.

They said fireworks lit by partygoers caused a power line to fall on a tightly packed crowd dancing behind a large sound truck.

North Korea's military threatened Sunday to fire at South Korea, as Seoul prepared to start annual joint drills with U.S. troops — maneuvers Pyongyang says are a rehearsal for an invasion.

The North's military warned that it would shoot directly at South Korean border towns and destroy them if Seoul continued to allow activists to launch propaganda leaflets toward the communist country, Pyongyang's official Korean Central News Agency said. The warning was conveyed to South Korea's military earlier Sunday, it said.