Disgraced CBS newsman Dan Rather accused the White House on Saturday of trying to "smear" him after he used forged documents in a bid to discredit President Bush's National Guard record. Speaking at a media forum in New York City, Rather insisted, "I don't have a political agenda." "I'm an independent journalist," he claimed, in quotes picked up by the Washington Post. Rather pledged that he wouldn't give in to his critics, whom he said were themselves guilty of "bias."The embattled newsman denied reports that he would step down as anchor of the "CBS Evening News" anytime soon, vowing to...