An unrepentant Sly explained why he called the nominee to be secretary of state, Condoleezza Rice, an "Aunt Jemima" and outgoing Secretary of State Colin Powell an "Uncle Tom" on the radio Wednesday. Sly, the on-air name for John Sylvester, told WTDY-AM (1670) morning show listeners that Rice, who is black, bought her way into the White House with obedience to President Bush."I'm not apologizing for what I said," Sylvester said Thursday in an interview. "I stand by it."I was aiming that directly at a black person that is letting himself (and herself) be used by an administration that has...