While the possibility of a nuclear attack on the United States is thankfully slim, the prospect has grown potentially more likely in recent times, with The Doomsday Clock, our grim ticker towards ...

10th anniversary of Boston Marathon bombing marked with somber ceremony With a bagpiper playing “The Bells of Dunblane” and a few runners looking on, families of those killed in the Boston ...

Law enforcement officials don't have any official suspects in Monday's twin bombings at the finish line of the Boston marathon. And President Obama specifically urged people not to speculate on ...