Larry May, Ph.D., J.D., is Professor of Philosophy at Washington University in St. Louis. He has published five single-authored books: The Morality of Groups (Notre Dame, 1987), Sharing Responsibility (Chicago, 1992), The Socially Responsive Self (Chicago, 1996), Masculinity and Morality (Cornell, 1998), and Crimes Against Humanity (Cambridge, 2005). This last book, which won honorable mention from the American Society of International Law, and best book award from the North American Society for Social Philosophy, is the first volume of a trilogy on the normative foundations of international criminal law. The second volume, War Crimes and Just Wars (Cambridge, forthcoming in 2007) won the Frank Chapman Sharp prize for the best book on the Philosophy of War and Peace from the American Philosophical Association. The third volume is titled “Aggression and Crimes Against Peace.” He has also co-authored, or co-edited, 12 other books, most recently a large anthology/textbook, The Morality of War (Prentice-Hall, 2006).