Hill: White House press secretary Jay Carney said Thursday that critics in Congress are making "doomsday claims" that the president's forthcoming climate regulation will devastate the economy. Carney said that special interests and their allies in Congress will use the scare tactic against the administration's cornerstone limits on carbon emissions from existing power plants. "We know that special interests and their allies in Congress will make doomsday claims about harm to jobs and harm to the economy,"...