Sean S. Costigan is Project Leader at MIT Cognet and a specialist in information technology, knowledge ecologies and social concerns. In 2010 he was a visiting fellow at the University of Calcutta's Institute of Foreign Policy Studies. Previously he taught at the Graduate Program in International Affairs at the New School, consulted for the U.S. Department of Energy, and was Director for Strategic Initiatives, Center for Security Studies, ETH Zurich. He is co-chair of the Economics of Security Study Group, chair of the editorial board, Partnership for Peace Consortium of Defense Academies and Security Studies Institutes and a member of the Council on Foreign Relations Homeland Security Working Group. He previously served as Executive Editor of Columbia International Affairs Online, Research Associate for Science, Technology and Defense Industrial Policy at the Council on Foreign Relations, and on the staff of the Center for International Affairs, Harvard University. His research interests include information technology, international policy, terrorism and the Internet, environment and energy issues and the history of science. He is the author or editor of a number of works, including Arming the Future, Terrornomics, the forthcoming Information Technology and International Security (Ashgate, 2011) and the Encyclopedia of International Security (CQ Press, 2011).