Philip Bobbitt is Herbert Wechsler Professor of Federal Jurisprudence at Columbia Law School, the director of its Center for National Security, and a distinguished senior lecturer at the University of Texas. One of the nation's leading constitutional theorists, his interests comprise constitutional law, international security, and the history of strategy. He has published nine books, including Terror and Consent (2008). He served as law clerk to the Hon. Henry J. Friendly (2 Cir.), associate counsel to the President, the counselor on international law at the U.S. Department of State, and senior director for strategic planning at the National Security Council among other posts. Bobbitt is a fellow of the American Academy of Arts and Sciences, a life member of the American Law Institute, and a member of the Council on Foreign Relations, the Pacific Council on International Policy, the International Institute for Strategic Studies, and serves on the Commission on the Continuity of Government.