VIENNA - World powers and Iran struggled 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. Full Article | Video
BAGHDAD - Islamic State militants have killed at least 25 members of a Sunni Muslim tribe in a village on the eastern edge of the provincial capital Ramadi, local officials said on Saturday, in apparent revenge for tribal opposition to the radical Islamists.
FERGUSON Mo - Residents of a St. Louis suburb were braced or 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. Full Article | Video
LAS VEGAS - President Barack Obama defended his decision to bypass Congress and overhaul immigration policy on his own, saying he was forced to act because House of Representatives Speaker John Boehner would not let legislation come to a vote. Full Article | Video
MELBOURNE, Fla./LOS ANGELES - Bill Cosby played a sold-out show in Florida despite a wave of sexual assault allegations this week that prompted the cancellation of several upcoming shows and two major studios to halt projects involving the comedian. Full Article
Portugal's former Prime Minister Jose Socrates arrives at a Lisbon court to be questioned as part of an investigation into tax fraud, corruption and money-laundering. Rough Cut (no reporter narration).