Stephen M. Walt, professor of international affairs at the J.F.K. School of Government, Harvard University, will present his lecture "International Studies and the Public Sphere: Some Personal Reflections." In 2005, Walt was elected as a Fellow in the American Academy of Arts and Sciences. He has published numerous books including The Origins of Alliances (1987), Revolution and War (1996), Taming American Power: The Global Response to U.S. Primacy (2005), and co-authored The Israel Lobby (2007). This event begins at 5 p.m. in the Watson Institute, 111 Thayer St., Joukowsky Forum. http://www.watsoninstitute.org/events_detail.cfm?id=1907