Host Says Rather Criticism Got Him Fired SEATTLE - A radio talk-show host said Saturday he has been fired for criticizing CBS newsman Dan Rather's handling of challenges to the authenticity of memos about President Bush's National Guard service.   "On the talk show that I host, or hosted, I said I felt Rather should either retire or be forced out over this," said Brian Maloney, whose weekly "The Brian Maloney Show" aired for three years on KIRO-AM Radio, a CBS affiliate here...