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CT scans are good at finding cancer, but their hefty dose of X-rays increases the risk of future cancers. Children are especially vulnerable. A new form of MRI can find tumors without radiation.

Josef Stalin watched Charlie Chaplin movies and signed execution orders at his summer villa in Sochi. It's now a museum, where the ruthless Soviet leader's paranoia is on full display.

Middle-aged and younger adults are being hospitalized at much higher rates than usual. Lower vaccination rates appear to be one reason behind the trend.

This week's North American Summit is refocusing attention on the proposal to build the Keystone XL pipeline. The issue's proved to be complicated for President Obama to navigate among green activists.

Facebook paid $19 billion for the instant messaging service WhatsApp even though it's never disclosed whether it's profitable. Aarti Shahani of KQED explains what Facebook sees in its new acquisition.

Women figure skaters competed for the gold Thursday in Sochi. In front of the hometown crowd, underdog Adelina Sotnikova of Russia beat out South Korea's Yuna Kim.

Fighting between police and the opposition in Ukraine continues despite attempts at diplomatic intervention. Dozens were killed in Kiev overnight, many in gun attacks shown on television.

Thursday marks the opening day of a Cairo trial for Al-Jazeera journalists, who have been jailed on terrorism charges. The case is a sign of the dangerous conditions for the press in Egypt.

David O. Russell, director of American Hustle and Silver Linings Playbook, first spoke with Terry Gross back in 1994. On Thursday, he tells her that after 20 years, he's finally met his aspirations.

Undercover footage shows a hog farm feeding sows ground-up piglets that succumbed to a deadly virus. Veterinarians say it's the only method they have to protect herds against a fast-spreading disease.