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Researchers conclude that spiral CT, which makes 3-D pictures of lungs, could reduce lung cancer deaths by 35 percent at a cost of $19,000 to $26,000 per year of life saved. The findings apply to people at high risk for developing lung cancer.

The Miami Marlins manager incensed many Cuban-Americans with comments praising Fidel Castro.

A shooting spree that left three African-Americans dead in Oklahoma and the death of unarmed black teenager Trayvon Martin have renewed public debate about hate crime laws. Host Michel Martin speaks with law professor and former federal prosecutor Paul Butler about hate crime statutes and whether they're necessary.

Wired reports that "sushi bots" were among the eye-catching products at the World Food and Beverage Great Expo, which just wrapped up in Tokyo.

There are 700,000 fewer people working for state and local governments than there were before the recession. Although tax collections are improving, the public sector remains in no mood to hire.

Anders Behring Breivik, the Norwegian man who confessed to killing 77 people last July, was not criminally insane when he bombed a government building and gunned unarmed people down at a youth conference, according to two psychiatrists appointed by a court in Norway.

Opposition figures said rebel fighters inside Syria would abide by the truce as long as the Syrian military does, while the government says its forces will return fire if attacked. But many remain skeptical that there will be a good-faith effort to follow all the peace plan's steps.

Neighborhood watch volunteer George Zimmerman has turned himself in to authorities in Florida. He has been charged with second-degree murder in the death of 17-year-old Trayvon Martin. The arrest caps weeks of protests, rallies and discussions across the United States about race relations, gun laws and other issues.

Sybrina Fulton says her comments early Thursday were misconstrued. She believes it was an accident that George Zimmerman saw her son, but that once he did the neighborhood watch volunteer deliberately tracked Trayvon Martin.

Hear the Australian pop star pay a visit to World Cafe in 2012 to perform songs from his new album, Making Mirrors.