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Brazil's ambitious effort to drive crime out of Rio de Janeiro's violent, low-income favelas ahead of the World Cup has had a mixed record. One positive effect: giving residents a say in local issues.

The tobacco industry played an influential role in the funding and popularization of stress research. A vast document archive details the relationships between cigarette makers and key scientists.

A bloody Fourth of July weekend left 60 people shot in Chicago, nine of them fatally, since Thursday afternoon. Many of the weekend's shootings occurred in the city's South Side neighborhoods.

Israel stepped up its air assault on the Gaza Strip. Unlike air strikes in the past, Israel has tempered its initial show of force, but the situation appears to be steadily intensifying.

According to new research, plants can hear the sounds of insects chewing. A University of Missouri study reports that plants can recognize the sound of a predator using the vibrations of their leaves.

More than 60 women and girls escaped Islamic extremists in northern Nigeria this week. Host Michel Martin catches up on the latest news from the country with the BBC's Tomi Oladipo.

People in heterosexual relationships are about 20 times less likely to pass HIV to their partners than homosexual men. Now scientists have found a clue to why this disparity exists.

Writer-director Richard Linklater says picking the film's star was vital because he had to guess what he'd be like at 18. "I just went with a kid who seemed kind of the most interesting."

July 21 is the new deadline for northwest Florida residents affected by storms and flooding to apply to FEMA for federal disaster assistance.As of last…

We all think of airplanes as hotbeds for diseases. But how easily do pathogens spread on jets? One travel doctor explains what he does to keep from bringing home microbial stowaways.