Will nuclear cooperation be a casualty of the Ukraine crisis?
Brazen takeover of Crimean Peninsula worries Western leaders that superpower could disregard nuclear nonproliferation pacts
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Brazen takeover of Crimean Peninsula worries Western leaders that superpower could disregard nuclear nonproliferation pacts
Twenty percent of Afghan council member seats are reserved for women, who are also figuring prominently in presidential campaigns
The president's visit with a key U.S. ally was intended to smooth over disagreements between the two countries on several flash points in the region
U.S. intelligence estimates Russian buildup near the Ukraine border at 40,000 to 50,000 as worries rise over Moscow's next move
Obama fields phone call from Putin, as U.S. intelligence estimates Russian buildup near the Ukraine border at 40,000 to 50,000 troops
Photographer captures the world's most offbeat competitions
Juan Elias Garcia detained in Nicaragua only a day after his name was put on the list, police there say
Afghan girl and driver killed after gunmen storm residence of U.S. charity; 3 Americans among those briefly trapped inside
After historic meeting with pontiff, president says Francis "projects the kind of humility and kindness" consistent with Jesus' teachings
President tells "CBS Evening News" anchor Scott Pelley that Russia needs to work with world community to de-escalate Ukrainian crisis
Judge delays trial for at least a week as one of her legal experts falls ill, dashing hopes that track star defendant was about to take the stand
A closer look at the public’s views of the the president's handling of the Ukraine situation raises several questions
Search area for lost jetliner moved 680 miles following new analysis of radar data
Authorities say the change comes after new analysis of radar data indicates Boeing 777 was traveling faster than previously thought
Thailand says hundreds of floating objects seen by satellite, but planes called back from Indian Ocean search area as weather deteriorates