Stephen Nathanson is a professor of philosophy at Northeastern University, Boston, Massachusetts. He received his B. A. with honors in philosophy from Swarthmore College, and his PhD in philosophy from Johns Hopkins University. Professor Nathanson’s most recent book is Terrorism and the Ethics of War (2010). In addition, he is the author of Patriotism, Morality and Peace (1993); Economic Justice (1998); An Eye for an Eye? The Immorality of Punishing by Death (2nd ed., 2001); Should We Consent to be Governed? (2nd ed., 2001), and numerous articles on issues in ethics and political philosophy.