NAFTA Debate; John Keegan; Hugh Downs

Representatives Richard Armey and Robert Torricelli debate the pros and cons of NAFTA, on which the House will be voting in the coming week. War Historian John Keegan on his book, "A History of Warfare," in which he looks at war over the centuries as a human function, rather than a political one. A conversation with news anchor and composer Hugh Downs, about television and music.