President Pervez Musharraf of Pakistan says the United States threatened to bomb his country back to the Stone Age after the Sept. 11 attacks if he did not help America's war on terror. Musharraf says the threat was delivered by Richard Armitage, then the deputy secretary of state, to Musharraf's intelligence director, the Pakistani leader told CBS-TV's 60 Minutes. "The intelligence director told me that (Armitage) said, 'Be prepared to be bombed. Be prepared to go back to the Stone Age,'" Musharraf said in the interview to be shown Sunday on the CBS television network.