Stephen M. Walt is Academic Dean and Robert and Renee Belfer Professor of International Affairs. He holds a BA in international relations from Stanford University and an MA and PhD in political science from the University of California at Berkeley. He was previously on the faculties of Princeton University and the University of Chicago, where he served as Deputy Dean of Social Sciences. He is the author of The Origins of Alliances (1987), which received the 1988 Edgar S. Furniss National Security Book Award, and Revolution and War (1996). His recent publications include: "Rigor or Rigor Mortis?: Rational Choice and Security Studies," International Security, Spring 1999; "Beyond bin Laden: Reshaping U.S. Foreign Policy," International Security, Winter 2001â?"02; and "The Enduring Relevance of the Realist Tradition," in Political Science: State of the Discipline (W.W. Norton, 2002).