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.

The U.N. Security Council moved as a powerful bloc Saturday to try to halt Libyan leader Moammer Gadhafi's deadly crackdown on protesters, slapping sanctions on him, his children and top associates.

Voting 15-0 after daylong discussions interrupted with breaks to consult with capitals back home, the council imposed an arms embargo and urged U.N. member countries to freeze the assets of Gadhafi, four of his sons and a daughter. The council also backed a travel ban on the Gadhafi family and close associates, including leaders of the revolutionary committees accused of much of the violence against opponents.

A New York City homeless man has been reunited with his daughter after 11 years, thanks to Twitter.

Daniel Morales was given a prepaid cell phone to create a Twitter account as part of a project on homeless people called Underheard in New York.

Papers relating to codebreaker and computer pioneer Alan Turing will go to a British museum after the National Heritage Memorial Fund stepped in to help buy them for the nation.

The government-backed fund said Friday it had donated more than 200,000 pounds ($320,000) to a campaign to stop the notes and scientific papers from going to a private buyer.

Hot flashes that bedevil many women in menopause might actually be a good thing, depending on when they strike, according to new data from a long-running government study.

Women who had hot flashes at the start of menopause but not later seemed to have a lower risk for heart attack and death than women who never had hot flashes, or those whose symptoms persisted long after menopause began.