Class of 2022

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Cameron Tracy
Cameron Tracy is a Research Scholar at Stanford University’s Center for International Security and Cooperation, where he studies the roles of scientific and technical knowledge in international security policy. His work addresses diverse technologies, ranging from hypersonic missiles to geologic repositories for the disposal of nuclear waste. Alongside this policy-oriented work, he conducts scientific research on the physical and chemical behavior of materials under extreme conditions of temperature, pressure, and irradiation. Previously, Dr. Tracy held fellowships at Harvard University, Stanford University, and the Union of Concerned Scientists, and worked at Los Alamos National Laboratory. He holds a PhD in materials science & engineering from the University of Michigan.

Edward Geist
Edward Geist is a policy researcher at the RAND Corporation. His research interests include Russia (primarily defense policy), civil defense, artificial intelligence, nuclear weapons, and the potential impact of emerging technologies on nuclear strategy. Formerly a MacArthur Nuclear Security Fellow at Stanford’s Center for International Security and Cooperation and a Stanton Nuclear Security Fellow at RAND, Geist received his Ph.D. in Soviet history from the University of North Carolina in 2013. He is the author of Armageddon Insurance (University of North Carolina Press, 2019), a comparative history of U.S. and Soviet civil defense during the Cold War, as well as a forthcoming book about artificial intelligence and nuclear warfare.

Clay Beevers
Clay Beevers is a Manager at Sandia National Laboratories (SNL) for the Neutron Generator (NG) Testers Value Stream that supports the NG development and production mission. He spent the early portion of his career as a Product Realization Team (PRT) Lead for multiple power source components in support of nuclear deterrence modernization programs. He then served as a Weapon Systems Engineer (WSE) and lead for the Development Hardware Team for the W80-4 Life Extension Program and W87-1. During his time as Development Hardware Lead, his team focused on accelerating acquisition and fabrication of development hardware and conducting root cause analysis of hardware related issues. He earned his B.S in Chemical Engineering and M.S in Materials Engineering from New Mexico Tech and his MBA from New Mexico State University.

Steve Andros
Commander Steve Andros is a Naval Explosive Ordnance Disposal Officer detailed to the Department of Energy where he serves as the Deputy Program Manager for Policy for the National Nuclear Security Administration, Office of Nuclear Incident Response. Commander Andros was previously assigned to Special Operations Command North and as Liaison Officer to FBI Critical Incident Response Group. There he served as strategy and plans policy advisor specific to Countering Weapons of Mass Destruction. Initially enlisting in the Navy October 1994 as a Hull Maintenance Technician, he served onboard USS Emory S. Land (AS-39) and conducted radiological, submarine hull & structural repair, and asbestos abatement. He received his commission from Hampton Roads NROTC through the Seaman to Admiral Program. There he earned a Bachelor of Science in Communications with a Minor in Middle Eastern Studies from Old Dominion University. Commander Andros also holds a Master of Arts Global Policy from Johns Hopkins, Paul H. Nitze School of Advanced International Studies and a Master of Strategic Studies from the US Army War College.

Jamil Brown
Jamil Brown is a US Space Force major and Branch Chief for US Space Command. He previously served as a fellow for the US Air Force Academy Institute for Future Conflict. As a branch chief he coordinates and plans emerging space technologies to execute US Space Command operations. In his previous role as an Air Force Academy Instructor and Fellow, he was responsible for leading the Dean’s future conflict and innovation education support efforts, ensuring the institutional outcomes are met. In his current role he continues coordinating future conflict research opportunities. He has served as a GPS operator, Space Operations Planner, Weapons School Instructor and Wing Weapons Officer. Originally from Mansfield, Texas, Jamil graduated from Baylor University with a degree in economics. He has a MS in International Relations from Troy University and a MBA from New England College.

Gary Timmins Jr.
Gary Timmins Jr. is a Foreign Affairs Officer for the Office of Multilateral and Nuclear Affairs within the U.S. Department of State’s Bureau of Arms Control, Verification and Compliance. Previously, he served as Senior Policy Advisor to Congressman Bill Foster with a legislative portfolio covering foreign affairs, the armed services, and intelligence policy, among other issues. During his tenure, he drafted numerous pieces of legislation related to the Congressman’s nuclear security and nonproliferation priorities, which were signed into law by the President. In his nearly eight years working in Congress, he held several positions, to include Staff Assistant, Legislative Correspondent, and Legislative Assistant. Gary holds a master’s degree in Strategic Security Studies from the U.S. Army War College and graduated from the U.S. Navy War College’s Fleet Seminar with distinction. He received his undergraduate degree in International Relations and Psychology from Northern Illinois University.

David M. Allison
David M. Allison is a Stanton Nuclear Security Postdoctoral Research Fellow with The Project on Managing the Atom and International Security Program at the Belfer Center for Science and International Affairs, Harvard Kennedy School. Dave’s research draws on experimental and archival methods to examine the foundations of nuclear deterrence and threats to strategic stability. His broader interests include emerging technologies, sources of civilian support in war, and assessments of military capabilities. He has conducted research in Iraq, Japan, South Korea, and the United States, and has published in the Journal of Conflict Resolution, International Security, the Bulletin of the Atomic Scientists, The Nonproliferation Review, and The National Interest. Prior to entering academia, Dave served as an officer in the United States Army. He holds a Ph.D. and M.A. in Political Science from Yale University and a B.A. with highest honors in Political Science from Columbia University.

Audrey Roman
Audrey Roman is an R&D scientist in the Safeguards Science and Technology group at Los Alamos National Laboratory (LANL). Currently she has multiple cross-division research endeavors which impact LANL Pit Production Mission. She spent 5 years, as a technical lead for the Heat Source Plutonium production and has recently moved to lead nuclear detector development for improving material accountancy for Pu-238 and spearhead LANL’s training initiatives for Materials Protection, Accounting, and Control Technologies. Prior to LANL, Audrey started her nuclear interests at Idaho National Laboratory investigating various ligands for separating fission products from used fuel. She earned her PhD in Radiochemistry from the University of Las Vegas, Nevada where she focused on analytical actinide separations for nuclear forensics.

April Arnold
April Arnold is a Senior Adviser for Culmen International, supporting NNSA’s Office of Nuclear Smuggling Detection & Deterrence. She has over a decade of experience in arms control implementation and verification and is interested in the intersection between international security and the clean energy transition. Outside her job, she is doing research on nonproliferation as a sustainable development tool with New America’s Nuclear Futures Working Group and clean energy cooperation between the United States and the Philippines with Pacific Forum’s U.S.-Philippines Next Generation Leaders in Security Initiative. She is an Advisory Board Member for the University of Delaware’s Political Science Department, a member of Johns Hopkins University’s Sustainability Leadership Council, a Board Fellow for the Bulletin of the Atomic Scientists, and a 2022 Aspen Strategy Group Rising Leader. She has a BA from the University of Delaware in International Relations and is currently pursuing her MA in Sustainable Energy at Johns Hopkins University

Jeffrey Rolfes
Jeffrey Rolfes is a Radiological/Nuclear Scientist at the Defense Threat Reduction Agency (DTRA) in Fort Belvoir, VA. In this role, he develops and executes training support for designated forces in radiological and nuclear search operations. Previously, he served as a senior CBRN scientist at the Department of Homeland Security CWMD, managing basic research in nuclear forensics. He holds a Bachelor of Science in chemistry, biology, and history from Newman University and a doctorate in radiochemistry from the University of Nevada, Las Vegas.

Felicity Newall
Felicity currently works within the Ministry of Defence for the UK Government in Whitehall, London. She is part of the Nuclear Policy Team and before this she worked for Director General Nuclear, Vanessa Nicholls, supporting a wide defence nuclear portfolio. Felicity previously held different roles within the UK Parliament coordinating engagement for international projects and programmes and managing the parliamentary offices for UK Members of Parliament including a former Secretary of State for Defence. Felicity has a master’s degree in International Security and Global Governance and, as part of her history undergraduate degree, undertook a specialist module in US and UK nuclear culture pre and post-1945.

Jonathan Dixon
Jonathan Dixon has worked for over a decade in the counterproliferation space, most recently as a section chief in the Office of Global Targeting in the Department of the Treasury. He has previously served as an advisor to the Under Secretary of Terrorism and Financial Intelligence and as a research analyst at C4ADS focusing on illicit trade networks. He is a distinguished graduate of the National War College, holds a master’s degree from American University, and received a bachelor’s degree from Furman University. His work has been published in the Journal of Nationalism and Ethnicities, Comparative Strategy Journal, and Strategy Bridge.

Kirsten Howley
Dr. Kirsten Howley is a design physicist at Lawrence Livermore National Laboratory (LLNL) with over 10 years of experience solving complex physics problems pertaining to national security. Dr. Howley uses her background in physics and astrophysics to enhance our technological knowledge and confidence in the nation’s nuclear defense. She brings a strong technical background in weapon physics, counterterrorism, and counterproliferation, and has proven herself as a reliable, creative, thoughtful leader. Over the course of her career, Dr. Howley has worked on assessing the safety, security and effectiveness of our nation’s deterrent and the threat posed by malicious actors. She uses her expertise to address a variety of national security issues including stockpile stewardship; assessing the impact from terrorism and weapons of mass destruction; asteroid hazard mitigation strategies; and severance of oil pipelines in emergency scenarios. In her work, Dr. Howley leverages large-scale computing systems (supercomputers) to model relevant physics phenomena and executes hydrodynamic experiments to improve our scientific understanding. She holds a Ph.D. in astronomy and astrophysics from the University of California, Santa Cruz. Dr. Howley is a California native who is passionate about outer space, board games, and fostering a diverse, equitable and inclusive workplace.

Kyle Yohe
Kyle Yohe is a Major in the U.S. Air Force and is the Speechwriter and Special Assistant to the Chairman of the Joint Chiefs of Staff. In this position, Kyle shapes the chairman’s strategic communications to the military, government officials, and the international community. Kyle is also a career B-52H instructor pilot and has deployed five times to Europe, the Middle East, and the Pacific. He has over 1,800 flying hours including 425 combat hours and is a graduate of the U.S. Air Force Weapons School. Kyle holds a Bachelor of Science in Operations Research from the U.S. Air Force Academy and a Master in Public Policy from the Harvard University John F. Kennedy School of Government.

Todd C. Robinson
Dr. Todd C. Robinson is an Assistant Professor of Military and Security Studies with the School for Advanced Nuclear Deterrence Studies (SANDS) at the Air Command and Staff College, Maxwell, AFB. He was previously an Assistant Professor of Nuclear Enterprise Operations with the Center for Strategic Deterrence Studies at the Air War College. Prior to this, he was a Stanton Nuclear Security Fellow at the RAND Corporation and the Associate Director of the Program in Arms Control, Disarmament, and International Security (ACDIS) at the University of Illinois at Urbana-Champaign. His research focuses on nuclear weapons issues, including strategic deterrence and assurance, military roles and responsibilities, and East Asia, and has been published in Comparative Strategy, the Non-Proliferation Review, Swords and Ploughshares, the Yale Journal of International Affairs, and the National Interest. He is currently working on a book manuscript focusing on strategic competition. He has a B.A. in Asian Studies from the University of Alabama, an M.A. in Security Policy Studies from the Elliott School of International Affairs at The George Washington University, and a Ph.D. in Political Science from the University of Illinois at Urbana-Champaign.

Jessica White-Horton
Jessica White-Horton is an R&D Staff Scientist at Oak Ridge National Laboratory in the National Security Sciences Directorate. Her main focus is in nuclear nonproliferation with a specialty in international safeguards implementation. She is the portfolio manager for the Human Capital Development Portfolio for NNSA’s NA-241 Office of International Nuclear Safeguards, supporting both academic programmes and mid-career opportunities for laboratory employees. Her other nonproliferation interests include safeguards for deep geological repositories, implementation of the Additional Protocol, and supporting ANSI standards for both Uranium Hexafluoride Cylinders and the use of the Global Cylinder ID currently being used by industry to account for material in transit. She has a Bachelor of Arts from McGill University in Foreign Language and a Master of Science from the University of Tennessee in Physics and Chemistry.

Erica Leinmiller
Erica Leinmiller is a Program Analyst in the Office of Strategic Planning and Analysis at the U.S. Department of Energy’s National Nuclear Security Administration. She contributes to the annual Stockpile Stewardship and Management Plan (SSMP), as well as industrial base monitoring and portfolio management. She previously served as a submarine officer onboard USS FLORIDA (SSGN 728) and as a weapons instructor at Naval Submarine School in Groton, CT. She continues to serve in the U.S. Navy Reserve as a watch officer at the Navy Operations Center. She earned a Bachelor of Science in English from the U.S. Naval Academy in 2013 and a Master in Public Policy from the Harvard Kennedy School in 2015. She serves on the board of the Harvard Women in Defense, Diplomacy, and Development (W3D).

Annelise Atkinson
Annelise Atkinson is a Foreign Affairs Specialist at the U.S. Department of Energy’s (DOE) National Nuclear Security Administration. In cooperation with international partners and DOE laboratory experts, she oversees the removal and disposition of weapons-useable nuclear materials from civilian sites in Europe. Annelise’s introduction to the nuclear field began in 2013 when she served in the Obama Administration as Special Assistant to the Deputy Secretary of Energy. She has conducted research for the Center for Strategic and International Studies, the James Martin Center for Nonproliferation Studies, the Monterey Initiative in Russian Studies, and Los Alamos National Laboratory. Annelise holds an MA in Nonproliferation and Terrorism Studies from the Middlebury Institute of International Studies and an MA in International Relations from Moscow State Institute of International Relations. She earned her BA degrees from the University of Iowa. She lives in North Carolina with her family and two rescue dogs.

Scott Rigsby
Scott Rigsby is an engineer with Northrop Grumman in Huntsville, Alabama. Scott serves as the Lead Design Integrator for the development of the Sentinel ICBM Launch Center, responsible for ensuring that all power systems, command, control and communication systems, and life support systems work together to achieve mission requirements. Prior to the Sentinel program, Scott worked as a Missile Engineer and Minuteman III systems engineer with the US Air Force, sustaining and modernizing survivable ICBM infrastructure and ground systems at all three operational missile wings. Scott is a Professional Engineer and holds a Bachelor’s Degree in Mechanical Engineering from the Georgia Institute of Technology and a Master of Business Administration from Mercer University.

Madison A. Estes
Madison A. Estes is a Deterrence Analyst with the J5 Directorate at United States Strategic Command (USSTRATCOM). Prior to joining USSTRATCOM Madison was a Policy Advisor in the Office of Undersecretary of Defense for Policy Office of Nuclear and Countering Weapons of Mass Destruction where she advised Department of Defense leadership on nuclear posture and policy, strategy, and allied assurance issues. She was also a research analyst with the Center for Naval Analyses Strategy and Policy Analysis program, where she conducted research on nuclear deterrence, extended deterrence, escalation, and arms control. Madison holds a master’s degree in Non-proliferation and International Security from King’s College London and a bachelor’s degree in International Relations from the University of Texas at Austin. She was a member of the 2019 CSIS Project On Nuclear Issues Nuclear Scholars Initiative.

Amelia Morgan
Dr Amelia Morgan is an ESRC/AHRC Policy Fellow at the UK’s Foreign, Commonwealth & Development Office, where she supports the development of UK nuclear weapons policy. Amelia is also a tutor at the Royal College of Defence Studies and a researcher at the Centre for Science and Security Studies (CSSS). She holds a PhD in Defence Studies from King’s College London.

Joel Harms
Joel Harms is a technical staff member at Sandia National Laboratories (SNL) in the Advanced Systems and Transformation center working in Exploratory Nuclear Deterrence Systems. Since joining the laboratory in 2012, he has worked on and led electrical and software projects relating to US missile defense, Use Control, automation, weapon system design, and safety. Joel is a 2019 graduate of the SNL Weapon Intern Program (WIP). His current activities include leading integration activities for new safety concepts, performing feasibility studies, and developing strategies to accelerate concept to production lifecycle. Joel holds a B.S. in Electrical Engineering and a B.S. in Computer Engineer from Missouri University of Science and Technology (Missouri S&T), and a M.S in Electrical Engineering from Texas Agriculture and Mechanics University (Texas A&M).

Jennifer Walters
Jennifer Walters is an active duty Air Force Major and KC-10A instructor pilot. Jennifer led aircrew on air refueling, humanitarian, and contingency operations across the globe. She deployed four times in support of Operations ENDURING FREEDOM, FREEDOM’S SENTINEL, INHERENT RESOLVE, and RESOLUTE SUPPORT, completing over 100 combat sorties. Major Walters is a distinguished graduate of the United States Air Force Academy and holds a Master of Philosophy and PhD in policy analysis from the Pardee RAND Graduate School. Most recently, she served as Lead Speechwriter to the Chairman of the Joint Chiefs of Staff in Washington, DC. She is also the co-founder of Air Mobility Command’s Reach Athena that identifies and addresses female and family-centric barriers to readiness. As an Olmsted Scholar, Jennifer will study international security policy in Aix-en-Provence, France.

Steph Varga
Steph Varga is lieutenant colonel in the United States Army and serves as a Nuclear and Counterproliferation Officer. He has worked in a variety of positions dealing with chemical, biological, radiological, and nuclear issues at the tactical, operational and strategic level. He currently works on the Joint Staff, J5 in the Deputy Directorate for Strategic Stability, where he helps develop Joint Force nuclear policies and plans. He has Master’s Degrees in Environmental Management, Countering Weapons of Mass Destruction, and Nuclear Engineering.