Sen. Barack Obama, D-Ill., has become the only presidential hopeful from either party so far to say radio host Don Imus should be fired over racial slurs. Obama Wednesday told ABC News he thought Imus should be fired and that he would never appear on the shock jock's show again. Imus faces a two-week suspension from his CBS Radio-MSNBC show following a firestorm over his characterization of the Rutgers University women's basketball team as "nappy-headed ho's." Imus has apologized for the insult. Obama told ABC if anyone on his own staff made a remark like that -- "about anybody of...