Panel on North Korea; Spike Lee; E. L. Doctorow

Former U.S. ambassador to South Korea Donald Gregg, president of the Council of Foreign Relations Les Gelb, former assistant secretary of state William Clark, and Senator John Kerry discuss the problem President Clinton faces in North Korea. Filmmaker Spike Lee talks about his career, his life, and his love of the New York Knicks. Award winning writer E. L. Doctorow on his novel, "The Waterworks" -- set in post-Civil War New York.