Tanya Ogilvie-White is a senior lecturer in the School of Social and Political Sciences at the University of Canterbury in New Zealand and a consulting fellow at the International Institute for Strategic Studies in London. She is coauthor of "Nuclear Weapons Policy at the Crossroads" and editor of a forthcoming volume of the correspondence of Michael Quinlan. David Santoro is a senior fellow for nonproliferation and disarmament at Pacific Forum CSIS. He is the author of "Treating Weapons Proliferation: An Oncological Approach to the Spread of Nuclear, Biological, and Chemical Technology." Both editors worked on this volume as recipients of the 2010-11 Stanton Nuclear Security Fellowship at the International Institute for Strategic Studies.