Jay A. Tilden and Dallas Boyd
Since 2016, Jay Tilden has served as NNSA’s Associate Administrator for Counterterrorism and Counterproliferation with responsibility in preparing for, responding to, and successfully resolving nuclear and radiological accidents and incidents worldwide. Previously, Mr. Tilden served as the Deputy Associate Administrator of the same office. From 2009 to 2012, Mr. Tilden served as the Director of the Office of Nuclear Threat Science (formerly the Office of Nuclear Counterterrorism), leading an integrated technical staff of Federal, contractor, and National Laboratory personnel that executed the multi-laboratory Nuclear Counterterrorism Program, charged with the evaluation of a wide range of nuclear threat devices, including improvised nuclear device concepts and designs. Before that, Mr. Tilden served as the Intelligence and Security Advisor to the Deputy Under Secretary for Counterterrorism and NNSA’s Office of Nuclear Counterterrorism. From 2004 to 2008, he was Director of the Counterterrorism Division of DOE’s Office of Intelligence and Counterintelligence, which was responsible for providing technical intelligence analysis on: terrorist radiological and nuclear capabilities; potential terrorist threats to nuclear facilities, materials, and activities; and worldwide nuclear materials holdings and their security. He also served as an Intelligence and Program Analyst for the Office of Security Policy advising on Design Basis Threat policies for DOE. Dallas Boyd is the Chief of Staff of the NNSA Office of Counterterrorism and Counterproliferation. From 2017-2018, he served on the National Security Council staff as Director for Countering Nuclear Terrorism.
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