Who knew? First lady Laura Bush took over the podium from her husband at Saturday night's annual White House Correspondents' Association dinner and knocked 'em dead, keeping Washington's most powerful politicos in stitches as she worked the ballroom like a seasoned stand-up comic. CUT Although Washington's movers and shakers laughed at Mrs. Bush's performance, some in the press woke up with a Sunday morning hangover and began to criticize her monologue as immodest at best and downright bawdy at worst. "Laura Bush cracks risque jokes at the White House Correspondents' dinner," sniffed Agence France-Presse. CNN reporter Elaine Quijano, who attended...