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About the FMWG

The Fissile Materials Working Group (FMWG) is a non-governmental coalition of 80 civil society organizations from around the world working to provide actionable policy solutions to keep the world safe from nuclear terrorism.


The FMWG has been a forceful presence in support of improved fissile materials security and the prevention of nuclear terrorism. Important milestones for the FMWG include:

  • The convening of a summit of international experts and events in support of the official 2010 Nuclear Security Summit (NSS), as well as assistance to South Korean planners organizing the 2012 Nuclear Security Symposium experts event and to Dutch planners organizing the 2014 Nuclear Knowledge Summit. The FMWG also organized the fourth civil society summit, Solutions for a Secure Nuclear Future, to support the 2016 NSS.
  • The creation of three Policy Development Working Groups that developed recommendations on (1) the elimination of civilian HEU, (2) addressing military nuclear materials, and (3) information-sharing, standards and best practices, and security culture. The FMWG published a joint recommendations report that summarized the key policy proposals from all three groups: The Results We Need: Policy Recommendations for the 2016 Nuclear Security Summit.
  • The publication of its consensus recommendations to the Obama administration for improving nuclear material security (September 2009), updated recommendations to world leaders before the 2012 Nuclear Security Summit (January 2012), and a new list of 8 recommendations (October 2013) that includes a plutonium policy recommendation agreed to in March 2013.

These activities engaged a broad array of international stakeholders.

Steering Committee

The FMWG Steering Committee is comprised of the following professionals:

  • Miles Pomper, Senior Fellow, James Martin Center for Nonproliferation Studies (Chair)
  • Irma Arguello, Founder and Chair, NPSGlobal Foundation
  • Dr. Matthew Bunn, Co-Principal Investigator, Project on Managing the Atom, Harvard University
  • Richard Cupitt, Senior Associate and Director UNSCR 1540 Assistance Support Initiative, Stimson Center
  • Dr. Christopher Hobbs, Reader in Science and Security, Department of War Studies, King’s College London
  • Ambassador Laura Holgate, Vice President, Material Security and Minimization, Nuclear Threat Initiative; former U.S. Representative to the Vienna Office of the UN and IAEA
  • Kingston Reif, Director for Disarmament and Threat Reduction Policy, Arms Control Association
  • Andrew Semmel, Chairman, Board of Directors, Partnership for a Secure America
  • Sharon Squassoni, Research Professor, George Washington University
  • Dr. Benn Tannenbaum, Non-Resident Fellow, Center for Science, Technology, and Security Policy, American Association for the Advancement of Science
  • John Tierney, Executive Director, Council for a Livable World and Center for Arms Control and Non-Proliferation
  • Paul Walker, Director, Security & Sustainability, Green Cross International
  • Anthony Wier, Director and Legislative Secretary for Nuclear Disarmament and Pentagon Spending, Friends Committee on National Legislation


The Working Group is comprised of the following organizations:

American Association for the Advancement of Science | Arms Control Association | Bulletin of the Atomic Scientists | Cato Institute | Center for Arms Control and Non-Proliferation | Center for International Trade and Security, University of Georgia | Center for Political-Military Analysis, Hudson Institute | Center for Strategic and International Studies | Citizens for Global Solutions | Citizens to Stop Nuclear Terrorism | Council for a Livable World | Federation of American Scientists | First Watch International | Friends Committee on National Legislation | Fund for Peace | Green Cross International | The Henry L. Stimson Center | The Howard H. Baker Jr. Center for Public Policy | James Martin Center for Nonproliferation Studies, Monterey Institute of International Studies | National Security Network | Natural Resources Defense Council | Nuclear Policy Program, Carnegie Endowment for International Peace | Nuclear Proliferation Prevention Project, University of Texas | Nuclear Threat Initiative | Partnership for a Secure America | Partnership for Global Security | Peace Action | Physicians for Social Responsibility | Program on Science and Global Security, Princeton University | Project on Government Oversight | Project on Managing the Atom, Harvard University’s Belfer Center for Science and International Affairs | ReThink Media | Security Studies Program, Massachusetts Institute of Technology | The Stanley Foundation | Union of Concerned Scientists | U.S.-Korea Institute at Johns Hopkins School of Advanced International Studies | Women’s Action for New Directions

The Fissile Materials Working Group is proud to call the following organizations its International Partners:

African Centre for Science and International Security Citizens and Scientists for Security Solutions (Ghana) | Ahmadu Bello University (Nigeria) | AN & Associates (Sweden) | Analytical Center for Nonproliferation (Russia) | Arab Institute for Security Studies (Jordan) | The Asan Institute for Policy Studies (Republic of Korea) | Austrian Institute for International Affairs (Austria) | Center for Energy and Security Studies (Russia) | Center for Foreign Policy and Regional Studies  (Vietnam) | Center for International Security Studies at MEF University (Turkey) | Center for the Promotion of Disarmament and Nonproliferation (Japan) | Center for Security Studies (Taiwan) | Centre for Conflict and Security Law, Utrecht University (Netherlands) | Centre for Economics and Foreign Policy Studies (Turkey) | Centre for Science and Security Studies, King’s College London (United Kingdom) | Centro Ecuatoriano Estudios Internacionales (Ecuador) | Chatham House, International Security Research Department (United Kingdom) | China Arms Control and Disarmament Association (China) | Civil Council on Defense and Security (Georgia) | Danish Institute for International Studies (Denmark) | Forum on Climate Change and Energy Policy (Republic of Korea) | Geneva Centre for Security Policy (Switzerland) | Georgian Institute of Public Affairs School of Law and Politics (Georgia) | IKV Pax Christi (Netherlands) | Institute of Advanced Studies (Chile) | Institute for Security Studies (South Africa) | Institute for Strategic Studies (India) | International Affairs and Foreign Policy Institute  (Spain) | International Institute for Strategic Studies (United Kingdom) | International Network of Emerging Nuclear Specialists (United Kingdom) | International Science and Technology Center (Multinational) | Korea National Diplomatic Academy (Republic of Korea) | Netherlands Institute of International Relations Clingendael (Netherlands) | Nord-Sud Ventures (Algeria) | NPSGlobal Foundation (Argentina) | Proyecto Latinoamericano de Asuntos Nucleares (Colombia) | The Russian Center for Policy Studies (Russia) | Russian Strategic Nuclear Forces Project (Russia) | S. Rajaratnam School of International Studies (Singapore) | School of Politics and International Relations, Australia National University (Australia) | South Asian Strategic Stability Institute (United Kingdom) | University of Antwerp (Belgium) | University of Kabangsaan (Malaysia) | Vienna Center for Disarmament and Non-Proliferation (Austria)