Dr. John R. Harvey is a physicist with over 40 years of experience working nuclear weapons and national security issues, first at LLNL, then at Stanford’s Center for International Security and Arms Control and in senior positions in the Departments of Defense (twice) and Energy. From 2009-2013, he served as Principal Deputy Assistant Secretary of Defense for Nuclear, Chemical, and Biological Defense Programs. In this role, he was Undersecretary Ash Carter’s “go to” person for the 2010 Nuclear Posture Review, and for interactions with the NNSA on joint oversight of the U.S. nuclear weapons stockpile. Dr. Harvey provided oversight to DoD acquisition programs to sustain and modernize nuclear weapons delivery systems and systems for their command and control. He has written and spoken extensively on these issues. On retiring from government service in 2013, he consults with, among others, the Defense Science Board, Institute for Defense Analysis, Los Alamos National Laboratory, U.S. Strategic Command’s Advisory Panel on Nuclear Command and Control and NNSA’s Defense Programs Advisory Committee.