Georgetown/Maryland Biennial Constitutional Law Discussion Group, 2006

ACS/Federalist Society, Fordham Law School [debate with John McGinnis], 2006

Federalist Society, New York, [debate with John Yoo] 2006

Cato Institute, [debate with John Yoo] 2006

Federalist Society Annual Student Convention, Columbia Law School, 2006

Annual Survey of Law, NYU Law School, 2006

Judges, Transition, and Human Rights, Queens University Belfast, 2005

Harvard Workshop on Foreign Relations Law, Harvard Law School, 2005

The Supreme Court: Case and Controversy, Program in Law and Public Affairs, Princeton, 2005

Conference on Human Rights Education, NYU School of Law, 2005.

American Society of International Law Conference, Georgetown Law Center, 2004

Columbia Law School Legal Theory Workshop, 2004

UCLA Law School Legal History Colloquium, 2004

Program in Law and Public Affairs Colloquium Series, Princeton University, 2004

Altneuland: Perspectives on the European Constitution, Princeton University and NYU Law School, 2004

Liberty Fund Conference, Santa Fe, New Mexico, 2004

Altneuland: The Constitution of Europe in an American Perspective,” School of Public and International Affairs, Princeton University and NYU School of Law, 2004 [Commentator]

University of Houston Faculty Colloquium, 2004

Universalism and Local Knowledge in Human Rights, Princeton University, 2003

Rawls and the Law, Fordham Law School, 2003