VIENNA - World powers and Iran struggled on Saturday to overcome crucial differences that are preventing them from ending a 12-year standoff over Tehran's atomic ambitions, raising the prospect of another extension to the high-stake talks. | Video
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BUFFALO - As temperatures near Buffalo, New York, rose above freezing on Saturday, volunteers fanned out to help their neighbors clear the walls of snow that have paralyzed parts of the region this week, but the warming trend also raised the threat of flooding.
ISTANBUL - U.S. Vice President Joe Biden said he and Turkish President Tayyip Erdogan he had discussed a transition of power in Syria away from President Bashar al-Assad during a four-hour meeting in Istanbul on Saturday.
FERGUSON Mo - Residents of a St. Louis suburb were braced on Saturday for a decision from a grand jury on whether to bring charges against a white police officer for fatally shooting a black teen, a case that has triggered months of demonstrations and a national debate over police violence.
NAIROBI - The Somali Islamist militant group al Shabaab said it had staged an attack in Kenya on Saturday in which gunmen ordered non-Muslims off a bus and shot 28 dead, while sparing Muslim passengers.