As you know, the world didn't end last year, like it was supposed to. By now, this is an old story. Yet many people continue to be drawn to doomsday alerts. 2012 promises to be another banner year for failed end-of-world predictions. But instead of arbitrary biblical interpretations, attention will shift to a supposed Mayan prophecy. As Mathew Restall and Amara Solari wrote this past weekend in the Washington Post: