Without fanfare, the nation's nuclear power regulators have overhauled community emergency planning for the first time in more than three decades, requiring fewer exercises for major accidents and recommending that fewer people be evacuated right away. Read More

When Hollywood set out to tell the story of how Mark Zuckerberg launched Facebook, it enjoyed the flexibility of portraying a man who, despite his social network's worldwide reach, was all but unknown to the public. Read More

Your daily look at late-breaking news, upcoming events and the stories that will be talked about today (times EDT): Read More

Twenty years after his troops began brutally ethnically cleansing Bosnian towns and villages of non-Serbs, Gen. Ratko Mladic went on trial Wednesday at the Yugoslav war crimes tribunal accused of 11 counts of genocide, crimes against humanity and war crimes. Read More

A groom whose bride had sought to keep their impending wedding secret from most of her family is wanted on a murder charge after his new wife was found stabbed to death in a bathtub in her suburban Chicago home just hours after the ceremony, still dressed in silver sequins. Read More

Remember Newt Gingrich calling Mitt Romney a liar? Michele Bachmann saying Romney's unelectable? Rick Santorum calling Romney "the worst Republican in the country" to run against Obama? Read More

The negotiating stance from Iranian officials never varies: The Islamic Republic will not give up its capabilities to make nuclear fuel. But embedded in the messages are meanings that reach beyond Tehran's talks with world powers. Read More

After an improbable Nebraska primary victory, state Sen. Deb Fischer has emerged from relative obscurity to take the mantle as one of the GOP's best hopes for picking up a U.S. Senate seat _ though she'll have to beat a famous Democratic politician to do it _ popular former Sen. Bob Kerrey. Read More

A midday bombing that killed two bodyguards of an archconservative former interior minister and injured at least 39 people in a busy commercial district of Bogota has raised fears that violence not seen in the Colombian capital in years could return. Read More