William Severe

William Severe spent most of his more than forty-year career in the interface between science and policy. With a degree in physics, he held scientific positions at Los Alamos and Oak Ridge National Laboratories as well as policy/foreign affairs postings at the International Atomic Energy Agency (IAEA) and the U.S. Department of State.  While at IAEA he was a member of the Subsidiary Arrangements Negotiating Team for concluding nuclear safeguards agreements with Member States and supported the Hexapartite Working Group for developing enrichment facility safeguards.  Later, as a Foreign Affairs Officer with the of Department of State, he coordinated and managed the execution of Project Vinca, which removed high enriched uranium (HEU) from a nuclear facility in Serbia – eliminating one of the U.S. Government’s highest priority nuclear threats at that time.  He was also Deputy Chief Negotiator for the U.S.-Russia High Enriched Uranium Transparency Program, which enabled the down-blending of over 500 tons of HEU from Russian nuclear weapons for use in civilian nuclear power production.  Mr. Severe is currently an Independent Consultant and may be reached at


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