Senior Director, Nuclear Materials Security

Nuclear Materials Security (NMS)

Expertise Nuclear Terrorism, Nuclear Weapons Policy

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Nickolas Roth serves as a senior director on the Nuclear Threat Initiative’s Nuclear Materials Security Program team, where he focuses on reducing the risk of nuclear terrorism, advancing arms control and disarmament, and strengthening institutions that support non-proliferation.

Prior to joining NTI in 2022, he was the director of the Stimson Center’s Nuclear Security Program, where his work focused on emerging technologies, domestic violent extremism in the United States, and organizational crisis management. At Stimson, he was also the founding director of the International Nuclear Security Forum, the largest international civil society network focused on strengthening nuclear security.

Before taking on his role at Stimson, Roth served as a research associate and senior research associate at the Harvard Kennedy School’s Project on Managing the Atom, where he received a Dean’s Award for his work. His research there focused on nuclear security, U.S. nuclear weapons policy, arms control, and the nuclear policy-making process. Roth has also served as a policy analyst at the Union of Concerned Scientists and as program director for the Alliance for Nuclear Accountability.

Roth has published more than a hundred articles, technical reports, or book chapters on nuclear policy. He has worked on more than a dozen pieces of legislation that were passed into law. Mr. Roth’s work has appeared in publications around the world, including the New York Times, The Washington Post, Los Angeles TimesBoston GlobeUSA Today, and Asahi Shimbun.

Roth earned a Master of Public Policy from the University of Maryland. He is currently a research scholar at the Center for International Security Studies at the University of Maryland and an associate of the Project on Managing the Atom at the Harvard Kennedy School.


Nuclear Facilities in Times of Crisis


Nuclear Facilities in Times of Crisis

Novel and increasingly intense global crises, like Russia’s invasion of Ukraine, are stressing nuclear facilities in new ways. Governments and international institutions should take steps to ensure that facilities are prepared to withstand these crises.

The 2023 NTI Nuclear Security Index


The 2023 NTI Nuclear Security Index

“The bottom line is that the countries and areas with the greatest responsibility for protecting the world from a catastrophic act of nuclear terrorism are derelict in their duty,” the 2023 NTI Index reports.



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