Deputy Administrator for Defense Nuclear Nonproliferation
National Nuclear Security Administration
Director, Domestic Nuclear Detection Office
U.S. Department of Homeland Security
Executive Director for Operations
U.S. Nuclear Regulatory Commission
Director, Natural Resources and Environment
U.S. Government Accountability Office
U.S. Senate Committee on Homeland Security & Governmental Affairs
340 Dirksen Senate Office Building Washington, DC, 20510
(202) 224-2627