Stephen J. Flanagan is Executive Director of the Center for Science and International Affairs and Adjunct Lecturer in Public Policy in the Kennedy School of Government at Harvard University. He has been an International Affairs Fellow of the Council on Foreign Relations, a Research Associate of the International Institute for Strategic Studies (IISS) in London, and a Visiting Scholar at the Georgetown University Center for Strategic and International Studies. He was a Professional Staff Member of the U.S. Senate Select Committee on Intelligence from 1978 to 1983. He received his B.A. in political science from Columbia University and a Ph.D. from the Fletcher School of Law and Diplomacy, Tufts University. He has published widely on European security, strategic arms control, and intelligence issues and was the author or co- author of more than twenty Congressional reports. Fen Osler Hampson, a Canadian national, is a research fellow at the Center for Science and International Affairs and coordinator of the Kennedy School’s Project on Avoiding Nuclear War. A graduate of the University of Toronto and the London School of Economics, he received his Ph.D. in Political Science from Harvard University. He was a member of the Kennedy School’s Energy and Security Project and a contributor to the volume Energy and Security. He has written on European security issues and crisis management.