Philip Bobbitt is the Herbert Wechsler Professor of Jurisprudence and director of the Center for National Security at Columbia Law School. He is also a senior fellow at the Robert Strauss Center for International Security and Law at the University of Texas. He is the author of seven books, of which Terror and Consent:The Wars for the 21st Century (Knopf, 2008) is the most recent. He has served in various capacities in government, including posts at the White House (associate counsel to president), the Senate (legal counsel to the Iran-Contra Committee), the State Department (the counselor on international law), and the National Security Council (director for intelligence programs, senior director for critical infrastructure, and senior director for strategic planning). He is a fellow of the American Academy of Arts and Sciences. He lives in New York, Austin, and London.