The notion of "magic" is a current popular culture phenomenon. Harry Potter, the Lord of the Rings, the commercial glamour of the footballer and the pop idol surround us with their charisma, enchantment, and charm. But magic also exerts a terrifying political hold upon us: bin Laden's alleged March 28 e-mail message spoke of the attacks on America in form of "crushing its towers, disgracing its arrogance, undoing its magic." The nine scholars...