Christopher Darnton has a PhD from the Department of Politics at Princeton University. At CISAC, Christopher is writing a book on the hundred-year history of U.S. security cooperation in Latin America, using declassified military documents to analyze the day-to-day work of alliance politics from the vantage point of officers in the field. How should we explain and understand military roles in inter-American relations beyond specific cases of intervention, and what lessons should inform US defense cooperation and military diplomacy today? Christopher’s broader work examines the domestic and bureaucratic politics of foreign policy in the Americas, particularly related to enduring rivalries and regional wars; conflict resolution and public diplomacy; developing-country diplomacy in the Cold War and in contemporary great power competition; and the refinement of archival and case-study research methods in security studies.

Christopher is an associate professor of national security affairs at the Naval Postgraduate School, where he has worked since 2016, teaching Latin American politics, international relations, and US foreign policy. Before NPS, Christopher taught for seven years at the Catholic University of America, and before that, for a year at Reed College. Christopher also served as president of the Foreign Policy section of the American Political Science Association; as a contributing editor to the Library of Congress' Handbook of Latin American Studies; and as a summer associate at the RAND Corporation.

Ryan A. Musto is the Director of Forums and Research Initiatives with the Global Research Institute (GRI) at William & Mary.

He is currently completing a book manuscript on the international history of regional nuclear weapon free zones. With his work, Ryan seeks to better understand the geopolitical and geostrategic dynamics that lead to proposals for regional denuclearization and determine their outcome. He also looks to further situate nuclear weapons within our understanding of the global north-south divide. Ultimately, Ryan aims to produce works of “applied history” that can inform contemporary efforts towards the completion of denuclearized zones and nuclear arms control more broadly.

Ryan served as a MacArthur Nuclear Security Postdoctoral Fellow with CISAC from 2020 - 2022. He has also served as a Stanton Nuclear Security Postdoctoral Fellow at the Massachusetts Institute of Technology (MIT) and as a Nuclear Security Fellow with the Fundação Getúlio Vargas (FGV) in São Paulo, Brazil. His work has been published in Diplomatic History, Cold War History, Diplomacy & Statecraft, Bulletin of the Atomic Scientists, Arms Control Today, and Americas Quarterly, amongst other outlets. Ryan is a frequent contributor to the Wilson Center’s Nuclear Proliferation International History Project (NPIHP).

Ryan holds a Ph.D. in history from The George Washington University, master’s degrees in international and world history from Columbia University and the London School of Economics, and a B.A. (hons.) in history from New York University (NYU).

Sulgiye Park is a Research Scholar at the Center for International Security and Cooperation (CISAC) at Stanford University. Previously, she was a Senior Scientist at the Union of Concerned Scientists, where she specialized in analyzing the nuclear fuel pathways of North Korea and China. She earned her Ph.D. in Geological Sciences from Stanford, focusing on the behavior of nuclear materials under extreme environments, and later conducted research at the Stanford Institute for Materials and Energy Sciences on fabricating nanodiamonds for technological applications. As both a Stanton Foundation and MacArthur Foundation Fellow at CISAC, her work encompassed geologic analysis of North Korea’s uranium and critical metal resources, regulatory frameworks for nuclear waste management, and the production and supply chains of rare-earth and other critical metals in the United States.

John R. Emery is an Assistant Professor of International Security at the University of Oklahoma in the Department of International and Area Studies. He holds a Ph.D. in Political Science from the University of California, Irvine. His research focuses broadly on the intersection of ethics of war, security studies and technology. His work on 1950s nuclear wargaming at the RAND Corporation and the impact of wargames on ethical intuition has been published in Texas National Security Review. Previous work on drones, ethics, counter-terrorism, and just war is published in Critical Military Studies, Ethics & International Affairs, and Peace Review. In 2017-2018 he was awarded the NSF-funded Technology, Law and Society Fellowship to undertake an interdisciplinary study of the impact of AI, Big Data, and blockchain on law and society scholarship.

Jeff is an Assistant Professor of Political Science at George Washington University. Previously, he was a postdoctoral fellow at Stanford's Center for International Security and Cooperation, sponsored by Stanford's Institute for Human-Centered Artificial Intelligence. His research agenda centers on technological change and international politics. His book project investigates how past technological revolutions influenced the rise and fall of great powers, with implications for U.S.-China competition in emerging technologies like AI. Other research papers tackle how states should identify strategic technologies, assessments of national scientific and technological capabilities, and interstate cooperation on nuclear safety and security technologies. Jeff's work has been published in Foreign Affairs, Security Studies, The Washington Post, and other outlets. Jeff received his PhD in 2021 from the University of Oxford, where he studied as a Rhodes Scholar. He has also worked as a researcher for Georgetown's Center for Security and Emerging Technology and the Centre for the Governance of AI at the University of Oxford.

Austin R. Cooper is a Stanton Nuclear Security Fellow in the Security Studies Program at the Massachusetts Institute of Technology. He completed his PhD in History and Sociology of Science at the University of Pennsylvania. He has held fellowships at Stanford University’s Center for International Security and Cooperation and SciencesPo’s Nuclear Knowledges Program.

Josh A. Goldstein is a past postdoctoral scholar at the Stanford Internet Observatory. He received his PhD in International Relations from the University of Oxford, where he studied as a Clarendon Scholar. At the Stanford Internet Observatory, Dr. Goldstein investigated covert influence operations on social media platforms, studied the effects of foreign interference on democratic societies, and explored how emerging technologies will impact the future of propaganda campaigns. He has given briefings to the Department of Defense, the State Department, and senior technology journalists based on this work, and published in outlets including Brookings, Lawfare, and Foreign Policy.

Prior to joining SIO, Dr. Goldstein received an MPhil in International Relations at Oxford with distinction and a BA in Government from Harvard College, summa cum laude. He also assisted with research and writing related to international security at the Belfer Center, Brookings Institution, House Foreign Affairs Committee, and Department of Defense.