WASHINGTON - First lady Laura Bush stole the show with a surprise comedy routine that ripped President Bush and brought an audience that included much of official Washington and a dash of Hollywood to a standing ovation at a dinner honoring award-winning journalists. The president planned a speech late Saturday at the 91st annual White House Correspondents' Association dinner, but was quickly "interrupted" by his wife in an obviously planned ploy. "Not that old joke, not again," she said to the delight of the audience. "I've been attending these dinners for years and just quietly sitting there. I've got a...