Currently at Columbia University working on Columbia World Projects, in addition to being a Lecturer in Law at the law school. Member of the National Commission on Military, National, and Public Service; Senior Fellow, Johns Hopkins University Applied Physics Laboratory. Formerly: served as Deputy National Security Adviser to President Obama; Deputy Director of the Central Intelligence Agency; served as Legal Adviser to the National Security Council; led the Treaty office at the Department of State; was the Deputy Chief Counsel for the United States Senate Committee on Foreign Relations; worked for The Hague Conference on Private International Law; and served as a law clerk on the U.S. Court of Appeals for the Sixth Circuit. Bachelor’s in Physics, University of Chicago; degree in Law, Georgetown University Law Center. Founded and ran a bookstore café for five years while engaged in community service in Baltimore.