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Voters in Brazil go to the polls Sunday to choose a new president. Incumbent Dilma Roussef is up against environmentalist Marina Silva and others, in a nail-biting race.

Hipsters in Beirut have a problem. Their long, lustrous beards are getting them mistaken for Islamist extremists and drawing unwanted scrutiny from the security forces.

The majority of undocumented workers in the U.S. come from Latin America, but there are still huge numbers from elsewhere in the world. Renee Montagne talks to immigration attorney Muzaffar Chishti.

Why do some cheeses melt and caramelize better than others? Researchers used high-tech cameras and special software to figure it out.

Citing millions of dollars spent already, Democrats argue politics is not a good reason to spend millions more investigating the attack on the U.S. diplomatic outpost in Libya more than a year ago.

The Obama administration is pushing back hard against Israeli Prime Minister Benjamin Netanyahu's suggestion that a two-state solution is dead and his reluctance to back an Iranian nuclear deal.

Travelers are bringing a nasty bacterial disease to the U.S. and spreading it to others. The bacteria cause bad diarrhea and are tough to treat because they're resistant to the top antibiotic.

Tight elasticized socks, sleeves and T-shirts supposedly make you a better athlete. But alas, science is pouring some cold water on those alluring claims.

NPR's Pentagon correspondent Tom Bowman offers this analysis of the vice president's speech Thursday on U.S. Iraq policy.

A new law in Oregon is designed to make voting easier. Advocates are looking to it to increase turnout, but that might not necessarily be the result.