About the Author

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David Hafemeister is Professor (emeritus) of Physics at Cal Poly University. He was employed on national security matters by Senator John Glenn (1975-77), State Department (Special Assistant to Under Sec. of State on nuclear proliferation, 1977-79, 1987), Senate Committees on Foreign Relations (1990-92) and Governmental Affairs (1992-93), Arms Control and Disarmament Agency (1997), Study Director at the National Academy of Sciences (2000-2) and Stanford University Center for International Security and Cooperation (2005-06). He was the lead SFRC technical staff on the ratification of TTBT, CFE and START. His book, Physics of Societal Issues (Springer, 2007) attempts to quantify what is quantifiable. He was chair of the Los Alamos Nonproliferation-Division Review Committee (2003--06).