Stephen Stedman is a Senior Fellow at the Freeman Spogli Institute for International Studies (FSI) and the Center on Democracy, Development and the Rule of Law (CDDRL), an affiliated faculty member at CISAC, and professor of political science (by courtesy) at Stanford University. He is director of CDDRL's Fisher Family Honors Program in Democracy, Development and Rule of Law, and will be faculty director of the Program on International Relations in the School of Humanities and Sciences effective Fall 2025.

In 2011-12 Professor Stedman served as the Director for the Global Commission on Elections, Democracy, and Security, a body of eminent persons tasked with developing recommendations on promoting and protecting the integrity of elections and international electoral assistance. The Commission is a joint project of the Kofi Annan Foundation and International IDEA, an intergovernmental organization that works on international democracy and electoral assistance.

In 2003-04 Professor Stedman was Research Director of the United Nations High-level Panel on Threats, Challenges and Change and was a principal drafter of the Panel’s report, A More Secure World: Our Shared Responsibility.

In 2005 he served as Assistant Secretary-General and Special Advisor to the Secretary- General of the United Nations, with responsibility for working with governments to adopt the Panel’s recommendations for strengthening collective security and for implementing changes within the United Nations Secretariat, including the creation of a Peacebuilding Support Office, a Counter Terrorism Task Force, and a Policy Committee to act as a cabinet to the Secretary-General.

His most recent book, with Bruce Jones and Carlos Pascual, is Power and Responsibility: Creating International Order in an Era of Transnational Threats (Washington DC: Brookings Institution, 2009).

Scott D. Sagan is the Caroline S.G. Munro Professor of Political Science, the Bass University Fellow in Undergraduate Education, and a Senior Fellow at the Center for International Security and Cooperation, where he previously served as the social science co-director. He is the Inaugural Harry Frank Guggenheim Fellow for Nuclear Ethics and Security at the Carnegie Council for Ethics in International Affairs (2026-2027). Sagan also serves as co-chair of the American Academy of Arts and Sciences’ Committee on International Security Studies. Before joining the Stanford faculty, he was a lecturer in the Department of Government at Harvard University and served as special assistant to the director of the Organization of the Joint Chiefs of Staff in the Pentagon.

Sagan is the author of Moving Targets: Nuclear Strategy and National Security (Princeton University Press, 1989); The Limits of Safety: Organizations, Accidents, and Nuclear Weapons (Princeton University Press, 1993); and, with co-author Kenneth N. Waltz, The Spread of Nuclear Weapons: An Enduring Debate (W.W. Norton, 2012). He is the co-editor of Insider Threats (Cornell University Press, 2017) with Matthew Bunn; and co-editor of The Fragile Balance of Terror (Cornell University Press, 2022) with Vipin Narang. Sagan was also the guest editor of a two-volume special issue of Daedalus: Ethics, Technology, and War (Fall 2016) and The Changing Rules of War (Winter 2017).

Recent publications include “Creeds and Contestation: How US Nuclear and Legal Doctrine Influence Each Other,” with Janina Dill, in a special issue of Security Studies (December 2025); “Kettles of Hawks: Public Opinion on the Nuclear Taboo and Noncombatant Immunity in the United States, United Kingdom, France, and Israel”, with Janina Dill and Benjamin A. Valentino in Security Studies (February 2022); “The Rule of Law and the Role of Strategy in U.S. Nuclear Doctrine” with Allen S. Weiner in International Security (Spring 2021); “Does the Noncombatant Immunity Norm Have Stopping Power?” with Benjamin A. Valentino in International Security (Fall 2020); and “Just War and Unjust Soldiers: American Public Opinion on the Moral Equality of Combatants” and “On Reciprocity, Revenge, and Replication: A Rejoinder to Walzer, McMahan, and Keohane” with Benjamin A. Valentino in Ethics & International Affairs (Winter 2019).

In 2022, Sagan was awarded Thérèse Delpech Memorial Award from the Carnegie Endowment for International Peace at their International Nuclear Policy Conference. In 2017, he received the International Studies Association’s Susan Strange Award which recognizes the scholar whose “singular intellect, assertiveness, and insight most challenge conventional wisdom and intellectual and organizational complacency" in the international studies community. Sagan was also the recipient of the National Academy of Sciences William and Katherine Estes Award in 2015, for his work addressing the risks of nuclear weapons and the causes of nuclear proliferation. The award, which is granted triennially, recognizes “research in any field of cognitive or behavioral science that advances understanding of issues relating to the risk of nuclear war.” In 2013, Sagan received the International Studies Association's International Security Studies Section Distinguished Scholar Award. He has also won four teaching awards: Stanford’s 1998-99 Dean’s Award for Distinguished Teaching; Stanford's 1996 Hoagland Prize for Undergraduate Teaching; the International Studies Association’s 2008 Innovative Teaching Award; and the Monterey Institute for International Studies’ Nonproliferation Education Award in 2009.     

An expert in international law and legal institutions, Thomas C. Heller has focused his research on the rule of law, international climate control, global energy use, and the interaction of government and nongovernmental organizations in establishing legal structures in the developing world. He has created innovative courses on the role of law in transitional and developing economies, as well as the comparative study of law in developed economies. He co-directs the law school’s Rule of Law Program, as well as the Stanford Program in International Law. Professor Heller has been a visiting professor at the European University Institute, Catholic University of Louvain, and Hong Kong University, and has served as the deputy director of the Freeman Spogli Institute for International Studies at Stanford University, where he is now a senior fellow.

Professor Heller is also a senior fellow (by courtesy) at the Woods Institute for the Environment. Before joining the Stanford Law School faculty in 1979, he was a professor of law at the University of Wisconsin Law School and an attorney-advisor to the governments of Chile and Colombia.

James Fearon is a senior fellow at the Freeman Spogli Institute for International Studies, where he is also the social science co-director at its Center for International Security and Cooperation. He is the Theodore and Frances Geballe Professor in the School of Humanities and Sciences and a professor of political science, as well as an affiliate at the institute's Center on Democracy, Development, and the Rule of Law. His research interests include civil and interstate war, ethnic conflict, the international spread of democracy and the evaluation of foreign aid projects promoting improved governance. Fearon was elected to the National Academy of Sciences in 2012 and the American Academy of Arts and Sciences in 2002. Some of his current research projects include work on the costs of collective and interpersonal violence, democratization and conflict in Myanmar, nuclear weapons and U.S. foreign policy, and the long-run persistence of armed conflict.

Lynn Eden is a Senior Research Scholar Emeritus. She was a Senior Research Scholar at Stanford University's Center for International Security and Cooperation until January 2016, as well as was Associate Director for Research. Eden received her Ph.D. in sociology from the University of Michigan, held several pre- and post-doctoral fellowships, and taught in the history department at Carnegie Mellon before coming to Stanford.

In the area of international security, Eden has focused on U.S. foreign and military policy, arms control, the social construction of science and technology, and organizational issues regarding nuclear policy and homeland security. She co-edited, with Steven E. Miller, Nuclear Arguments: Understanding the Strategic Nuclear Arms and Arms Control Debates (Ithaca, N.Y.: Cornell University Press, 1989). She was an editor of The Oxford Companion to American Military History (New York: Oxford University Press, 2000), which takes a social and cultural perspective on war and peace in U.S. history. That volume was chosen as a Main Selection of the History Book Club.

Eden's book Whole World on Fire: Organizations, Knowledge, and Nuclear Weapons Devastation (Ithaca: Cornell University Press, 2004; New Delhi: Manas Publications, 2004) explores how and why the U.S. government--from World War II to the present--has greatly underestimated the damage caused by nuclear weapons by failing to predict damage from firestorms. It shows how well-funded and highly professional organizations, by focusing on what they do well and systematically excluding what they don't, may build a poor representation of the world--a self-reinforcing fallacy that can have serious consequences, from the sinking of the Titanic to not predicting the vulnerability of the World Trade Center to burning jet fuel. Whole World on Fire won the American Sociological Association's 2004 Robert K. Merton Award for best book in science, knowledge, and technology.

Eden has also written on life in small-town America. Her first book, Crisis in Watertown (Ann Arbor: University of Michigan Press, 1972), was her college senior thesis; it was a finalist for a National Book Award in 1973. Her second book, Witness in Philadelphia, with Florence Mars (Baton Rouge: Louisiana State University Press, 1977), about the murders of civil rights workers Schwerner, Chaney, and Goodman in the summer of 1964, was a Book of the Month Club Alternate Selection.