Graham Allison
Graham Allison is the Director of the Belfer Center for Science and International Affairs at Harvard University's John F. Kennedy School of Government. He has for three decades been a leading analyst of U.S. national security and defense policy with a special interest in nuclear weapons, terrorism, and decision-making. Dr. Allison's latest book, Nuclear Terrorism: The Ultimate Preventable Catastrophe, is now in its third printing and was selected by the New York Times as one of the "100 most notable books of 2004." He is the author of Clues For The Nuclear Security Summit: What Happened To The Soviet Superpower's Nuclear Arsenal?, and the 2012 Seoul Nuclear Security Summit Q&A.

Matthew Bunn
Matthew Bunn is an Associate Professor at Harvard University's John F. Kennedy School of Government. Before joining the Kennedy School in January 1997, he served for three years as an adviser to the Office of Science and Technology Policy, where he played a major role in U.S. policies related to the control and disposition of weapons-usable nuclear materials in the United States and the former Soviet Union. He is the author of the briefing The Threat Of Nuclear Terrorism: What's New? What's True?, co-author of a 2012 Seoul Nuclear Security Summit Scorecard assessing global progress on improving nuclear security over the past four years, and Consolidation: Thwarting Nuclear Theft, an assessment of the campaign to consolidate dangerous nuclear materials worldwide to fewer, more secure sites.

Eben Harrell
Eben Harrell is a Research Associate at the Project on Managing the Atom in the Belfer Center for Science and International Affairs. He is the co-author of a 2012 Seoul Nuclear Security Summit Scorecard assessing global progress on improving nuclear security, and Consolidation: Thwarting Nuclear Theft, an assessment of the campaign to consolidate dangerous nuclear materials worldwide to fewer, more secure sites.

Olli Heinonen
Olli Heinonen is a Senior Fellow at the Belfer Center for Science and International Affairs. Before joining Harvard in 2010, Dr. Heinonen spent 27 years at the International Atomic Energy Agency in Vienna. He spent the last five years as Deputy Director General of the IAEA, and head of its Department of Safeguards.

Martin B. Malin
Martin B. Malin is the Executive Director of the Project on Managing the Atom at the Belfer Center for Science and International Affairs. He is the co-author of a 2012 Seoul Nuclear Security Summit Scorecard assessing global progress on improving nuclear security over the past four years.

Steven E. Miller
Steven E. Miller is director of the International Security Program and Co-Principal Investigator of the Project on Managing the Atom at the Belfer Center for Science and International Affairs. He is also the Editor-in-Chief of the quarterly journal, International Security. Miller is editor or co-editor of more than two dozen books, including, most recently, Contending with Terrorism (July 2010).

Rolf Mowatt-Larssen
Rolf Mowatt-Larssen is a Senior Fellow at the Belfer Center for Science and International Affairs. Before joining the Kennedy School, Mr. Rolf Mowatt-Larssen served over three years as the Director of Intelligence and Counterintelligence at the U.S. Department of Energy. Prior to this, he served for 23 years as a CIA intelligence officer in various domestic and international posts.

Kevin Ryan
Brigadier General Kevin Ryan (U.S. Army retired) is Executive Director of the Belfer Center for Science and International Affairs. He was previously a senior fellow at the Belfer Center focusing on U.S. and Russian military and security issues. Most recently he was the founding director of the center's U.S.-Russia Initiative to Prevent Nuclear Terrorism, where he continues to facilitate U.S.-Russian cooperation.

William H. Tobey
William H. Tobey is a Senior Fellow at the Belfer Center for Science and International Affairs. Before joining Harvard, he was most recently Deputy Administrator for Defense Nuclear Nonproliferation at the National Nuclear Security Administration. There, he managed the U.S. government's largest program to prevent nuclear terrorism by detecting, securing, and disposing of dangerous nuclear material. He is the co-author of a 2012 Seoul Nuclear Security Summit Scorecard assessing global progress on improving nuclear security over the past four years.