For more than 25 years, the National Nuclear Security Administration’s Office of Defense Nuclear Nonproliferation (DNN) has worked to protect the United States from nuclear proliferation and terrorism. Under the Trump administration, DNN is adapting that mission to an increasingly complex security environment by denying adversaries access to nuclear and radiological materials, technologies, and expertise; detecting proliferation and nuclear activities; and defeating attempts to smuggle or misuse dangerous materials. At the same time, DNN is helping advance U.S. energy dominance by enabling the secure expansion of American nuclear technology at home and abroad.

Join the Carnegie Endowment for a conversation with Dr. Matthew Napoli, deputy administrator for Defense Nuclear Nonproliferation, on the evolving nuclear threat environment, DNN’s deny, detect, defeat approach, and the role of nonproliferation in strengthening U.S. national security and American nuclear leadership. James Acton, co-director of Carnegie’s Nuclear Policy Program, will moderate the discussion before Dr. Napoli takes questions.