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Steven Aoki is the Associate Administrator and Deputy Under Secretary for Counterterrorism and Counterproliferation. In this position, Dr. Aoki is responsible for coordinating counterterrorism policy throughout the U.S. Department of Energy. He reports to Thomas D’Agostino, Administrator of the National Nuclear Security Administration. Much of the focus of the department’s counterterrorism efforts centers on the nuclear security enterprise, but also cuts across many organizations in the DOE.
A career member of the Senior Executive Service, from 2000-2004 he was Senior Advisor for International Affairs to the Administrator of Department of Energy’s National Nuclear Security Administration. Before joining DOE, he served at the U.S. Department of State as the Director of the Office of Proliferation Threat Reduction. During 1993-1996, he was on the staff of the National Security Council, with responsibility for nonproliferation and export control policies. Prior to that, he served as Special Assistant to the Under Secretary of State for International Security Affairs and in several positions in the Bureaus of Politico-Military Affairs and Near East-South Asian Affairs at the State Department, specializing in nonproliferation, regional security, and counter-terrorism activities. From 1978-1984 he was a scientific staff member and program manager at the Lawrence Livermore National Laboratory. He holds a Ph.D. in physics from the University of Chicago.