Siegfried S. Hecker is a professor emeritus (research) in the Department of Management Science and Engineering and a senior fellow emeritus at the Freeman Spogli Institute for International Studies (FSI). He was co-director of CISAC from 2007-2012. From 1986 to 1997, Dr. Hecker served as the fifth Director of the Los Alamos National Laboratory. Dr. Hecker is an internationally recognized expert in plutonium science, global threat reduction, and nuclear security.

Dr. Hecker’s current research interests include nuclear nonproliferation and arms control, nuclear weapons policy, nuclear security, the safe and secure expansion of nuclear energy, and plutonium science. At the end of the Cold War, he has fostered cooperation with the Russian nuclear laboratories to secure and safeguard the vast stockpile of ex-Soviet fissile materials. In June 2016, the Los Alamos Historical Society published two volumes edited by Dr. Hecker. The works, titled Doomed to Cooperate, document the history of Russian-U.S. laboratory-to-laboratory cooperation since 1992.

Dr. Hecker’s research projects at CISAC focus on cooperation with young and senior nuclear professionals in Russia and China to reduce the risks of nuclear proliferation and nuclear terrorism worldwide, to avoid a return to a nuclear arms race, and to promote the safe and secure global expansion of nuclear power. He also continues to assess the technical and political challenges of nuclear North Korea and the nuclear aspirations of Iran.

Dr. Hecker joined Los Alamos National Laboratory as graduate research assistant and postdoctoral fellow before returning as technical staff member following a tenure at General Motors Research. He led the laboratory's Materials Science and Technology Division and Center for Materials Science before serving as laboratory director from 1986 through 1997, and senior fellow until July 2005.

Among his professional distinctions, Dr. Hecker is a member of the National Academy of Engineering; foreign member of the Russian Academy of Sciences; fellow of the TMS, or Minerals, Metallurgy and Materials Society; fellow of the American Society for Metals; fellow of the American Physical Society, honorary member of the American Ceramics Society; and fellow of the American Academy of Arts and Sciences.

His achievements have been recognized with the Presidential Enrico Fermi Award, the 2020 Building Bridges Award from the Pacific Century Institute, the 2018 National Engineering Award from the American Association of Engineering Societies, the 2017 American Nuclear Society Eisenhower Medal, the American Physical Society’s Leo Szilard Prize, the American Nuclear Society's Seaborg Medal, the Department of Energy's E.O. Lawrence Award, the Los Alamos National Laboratory Medal, among other awards including the Alumni Association Gold Medal and the Undergraduate Distinguished Alumni Award from Case Western Reserve University, where he earned his bachelor's, master's, and doctoral degrees in metallurgy.

Shiri Krebs is a Professor of Law at Deakin University and Director of the Centre for Law as Protection. She is also the Chair of the Lieber Society on the Law of Armed Conflict, an affiliate scholar at Stanford University Center for International Security and Cooperation (CISAC), and co-lead of the Australian Government Cyber Security Cooperative Research Centre (CSCRC) Law and Policy Theme. In 2024, she was appointed as a Visiting Legal Fellow at the Australian Government Department of Foreign Affairs and Trade (DFAT). Her research on drone warfare and predictive technologies in counterterrorism and armed conflict is currently funded by a 3-year Australian Research Council (ARC) DECRA fellowship and an Alexander von Humboldt Experienced Researcher Fellowship at the University of Hamburg.

Prof Krebs’ research projects on international fact-finding, biases in counterterrorism decision-making, and human-machine interaction in drone warfare, have influenced decision-making processes through invitations to brief high-level decision-makers, including at the United Nations (CTED, Office of the Secretary-General), the United States Department of Defense, and the Australian Defence Force.

Her recent research awards include the David Caron Prize (American Society of International Law, 2021), the ‘Researcher of the Year’ Award (Australian Women in Law Awards, 2022), the Australian Legal Research Awards (finalist, Article/Chapter (ECR), 2022), and the Vice-Chancellor’s Researcher Award for Career Excellence (Deakin, 2022).

Before joining Deakin University, Prof Krebs has taught in several law schools, including at Stanford University, University of Santa Clara, and the Hebrew University of Jerusalem, where she won the Dean’s award recognizing exceptional junior faculty members.

She earned her Doctorate and Master Degrees from Stanford Law School, as well as LL.B. and M.A., both magna cum laude, from the Hebrew University of Jerusalem.

Robert Rakove is a historian who studies U.S. foreign relations, focusing particularly on the Cold War era.  He is a lecturer in Stanford University's Program in International Relations, and has previously taught at Colgate University and Old Dominion University.  His first book, Kennedy, Johnson, and the Nonaligned World, was published by Cambridge University Press in 2012.  He completed his second book, Days of Opportunity: The United States and Afghanistan before the Soviet Invasion, a study of the U.S.-Afghan relationship and the Cold War in the Afghanistan before the Soviet invasion and was published by Columbia University Press in 2023.  He received his doctorate in History in 2008 from the University of Virginia, and was a postdoctoral fellow at the Mershon Center for International Security Studies at The Ohio State University, at the University of Sydney's United States Studies Centre, and at the Hoover Institution.