John F. Ahearne, Ph.D., is currently; Adjunct Scholar, Resources for the Future; and Adjunct Professor of Civil and Environmental Engineering and Lecturer in Public Policy, Duke University. He has served as Executive Director for Sigma Xi, The Scientific Research Society; Vice President and Senior Fellow for Resources for the Future; Commissioner and Chairman of the U.S. Nuclear Regulatory Commission; and numerous positions within the Department of Defense and the Department of Energy.  He chaired the National Research Council Committee on the Environmental Management Science Program and chairs the Committee to Review the Research Activities Completed Under the Energy Policy Act of 1992 (EPACT), has served on many other NRC Committees, and is Vice Chair of the Board on Radioactive Waste Management. Dr. Ahearne received a bachelorís degree in engineering physics and an M.S. in physics from Cornell University, and an M.A. and Ph.D. in physics from Princeton. He is a member of the National Academy of Engineering, Society for Risk Analysis, and American Nuclear Society and is a fellow of the American Physical Society, American Academy of Arts and Sciences, and the AAAS.