2019 Physics/Theoretical Colloquium Thursday, February 28th , 2019 3:45 – 4:45 p.m. Rosen Auditorium (TA-53, Bldg. 1) Refreshments at 3:15pm Speaker: Dr. John C. Hopkins Former Los Alamos National Laboratory Associate Director responsible for the Nuclear Weapons Program “The Scientific Foundation for Assessing the Nuclear Performance of Weapons in the U.S. Stockpile is Eroding" Abstract: The physical state of weapons in today’s stockpile differs from what it was when their nuclear performance was tested, and the current nuclear test moratorium precludes a decisive determination of whether these changes in physical state adversely affect performance. John C. Hopkins Bio 2018 John C. Hopkins is a nuclear physicist with a Ph.D. from the University of Washington in Seattle. He is a former Los Alamos National Laboratory Associate Director responsible for the nuclear weapons program. Throughout this period Hopkins was involved in national security policy issues. He was a visiting scholar at the University of California's Institute on Global Conflict and Cooperation where he edited a 1994 book on the nuclear policies of Britain, France, and China. Hopkins is coauthor (with Barbara Germain Killian) of a comprehensive history of the first decade of nuclear testing in Nevada. Hopkins has served on governmental and international boards and panels and is a former member of the Chief of Naval Operations’ (CNO) Executive Panel. He has been a technical advisor to the Arms Control and Disarmament Agency in Washington and in Geneva. Hopkins has worked closely with the State, Energy, and Defense Departments and has participated in numerous special programs for the U.S. Government.