First Up Tucker interviews presidential candidate Ralph Nader in a discussion centered on the policies of a Nader administration - on Iraq, the war on terror, the economy and other critical issues. Joining Tucker will be Zanny Minton Beddoes of The Economist and David Frum of The National Review and the American Enterprise Institute in a wide-ranging conversation to include Iraq and the presidential race. On our Back Page segment, Tucker talks with Christopher Hitchens of Vanity Fair about the writer's evolving attitudes about the nature of the terrorist threat.