Megan Braun is a Rhodes Scholar and an MPhil candidate in International Relations at Oxford University, where her research focuses on the interaction among technology, law, and the just war tradition. She was an intern at the New America Foundation during summer 2012, where she worked to revise and update its drone database. She has published on drones on CNN and in Ethics & International Affairs, and is a regular contributor to Foreign Policy's “The Afpak Channel.” megan.braun@politics.ox.ac.uk

Daniel Brunstetter is Assistant Professor in the Department of Political Science at the University of California, Irvine. He has published on the just war tradition and modern political philosophy in Political Studies, International Relations, Review of Politics, The Atlantic, and elsewhere. His current research interests concern the moral issues raised when using military force short of war—particularly drones—which is the subject of his latest book project. dbrunste@uci.edu

James Turner Johnson is Distinguished Professor of Religion and Associate of the Graduate Program in Political Science at Rutgers—The State University of New Jersey, where he has been on the faculty since 1969. His research and teaching have focused principally on the historical development and application of the Western and Islamic moral traditions related to war, peace, and the practice of statecraft. Johnson has received Rockefeller, Guggenheim, and National Endowment for the Humanities fellowships and various other research grants and has directed two NEH summer seminars for college teachers. His most recent books include Ethics and the Use of Force: Just War in Historical Perspective (2011), The War to Oust Saddam Hussein (2005), Morality and Contemporary Warfare (1999), The Holy War Idea in Western and Islamic Tradition (1997), and (edited with John Kelsay) Just War and Jihad: Historical and Theoretical Perspectives on War and Peace in Western and Islamic Traditions (1991) and Cross, Crescent, and Sword: The Justification and Limitation of War in Western and Islamic Tradition (1990). He is currently completing a book with the working title “The Idea of Sovereignty in Moral and Historical Perspective.” jtj@rci.rutgers.edu

John Kelsay is Distinguished Research Professor of Religion at Florida State University in Tallahassee. His publications include Arguing the Just War in Islam (2007), Islam and War (1993), and a number of articles on topics related to the cultural regulation of armed force. The article that appears in this issue of Ethics & International Affairs is part of an ongoing project that aims to provide an account of the nature and purposes of the just war tradition, with particular reference to the war on terror. jkelsay@fsu.edu

Cian O'Driscoll is Lecturer in Politics at the University of Glasgow, having attended the University of Limerick, Dalhouse University, and the University of Wales, Aberystwyth, where he completed his PhD in International Politics. His work focuses on the just war tradition and the ethics of war more generally. O'Driscoll's monograph, The Renegotiation of the Just War Tradition, appeared in 2008, and his coedited volume (with John Williams and Anthony F. Lang, Jr.), Just War: Authority, Tradition, Practice, is forthcoming in 2013. He has published a number of articles, including in the European Journal of Political Theory, Millennium: Journal of International Studies, International Relations, Journal of Military Ethics, and Cambridge Review of International Affairs. He is co-convener of the Glasgow Global Security Network and a fellow of the Royal Society of Edinburgh, Young Academy. cian.odriscoll@glasgow.ac.uk

Shefa Siegel writes about resource relations, the environment, and religion for Haaretz, Yale Environment 360, and Sojourners. He was most recently Associate Research Scholar at the Earth Institute's Vale Columbia Center on Sustainable International Investment at Columbia University, and previously worked as an advisor for the United Nations Industrial Development Organization and for Natural Resources Canada. As a scholar, journalist, and environmental practitioner, he has traveled to mining regions in a dozen countries studying the intersections of environment, development, and mining. He earned an undergraduate degree in religion from the University of Michigan, a graduate degree in environmental policy from Tufts University, and a PhD from the department of mining engineering at the University of British Columbia. shefayo@gmail.com