Matthew C. Waxman is adjunct senior fellow for law and foreign policy at the Council on Foreign Relations. He is also professor at Columbia Law School and a member of the Hoover Institution's task force on national security and law. He previously served at the U.S. Department of State as principal deputy director of policy planning. His prior government appointments included deputy assistant secretary of defense for detainee affairs, director for contingency planning and international justice at the National Security Council, and special assistant to the national security adviser. He is a graduate of Yale College and Yale Law School, and studied international relations as a Fulbright scholar in the United Kingdom. After law school, he served as law clerk to Supreme Court justice David H. Souter and U.S. Court of Appeals judge Joel M. Flaum.