William Perry is the Michael and Barbara Berberian Professor (emeritus) at Stanford University. He is a senior fellow at the Freeman Spogli Institute and the Hoover Institution, and serves as director of the Preventive Defense Project. He is an expert in U.S. foreign policy, national security and arms control. He was the co-director of CISAC from 1988 to 1993, during which time he was also a part-time professor at Stanford. He was a part-time lecturer in the Department of Mathematics at Santa Clara University from 1971 to 1977.

Perry was the 19th secretary of defense for the United States, serving from February 1994 to January 1997. He previously served as deputy secretary of defense (1993-1994) and as under secretary of defense for research and engineering (1977-1981). Dr. Perry currently serves on the Defense Policy Board (DPB). He is on the board of directors of Covant and several emerging high-tech companies. His previous business experience includes serving as a laboratory director for General Telephone and Electronics (1954-1964); founder and president of ESL Inc. (1964-1977); executive vice-president of Hambrecht & Quist Inc. (1981-1985); and founder and chairman of Technology Strategies & Alliances (1985-1993). He is a member of the National Academy of Engineering and a fellow of the American Academy of Arts and Sciences.

From 1946 to 1947, Perry was an enlisted man in the Army Corps of Engineers, and served in the Army of Occupation in Japan. He joined the Reserve Officer Training Corps in 1948 and was a second lieutenant in the Army Reserves from 1950 to 1955. He was awarded the Presidential Medal of Freedom in 1997 and the Knight Commander of the British Empire in 1998. Perry has received a number of other awards including the Department of Defense Distinguished Service Medal (1980 and 1981), and Outstanding Civilian Service Medals from the Army (1962 and 1997), the Air Force (1997), the Navy (1997), the Defense Intelligence Agency (1977 and 1997), NASA (1981) and the Coast Guard (1997). He received the American Electronic Association's Medal of Achievement (1980), the Eisenhower Award (1996), the Marshall Award (1997), the Forrestal Medal (1994), and the Henry Stimson Medal (1994). The National Academy of Engineering selected him for the Arthur Bueche Medal in 1996. He has received awards from the enlisted personnel of the Army, Navy, and the Air Force. He has received decorations from the governments of Albania, Bahrain, France, Germany, Hungary, Japan, Korea, Poland, Slovenia, and Ukraine. He received a BS and MS from Stanford University and a PhD from Pennsylvania State University, all in mathematics.

Michael May is Professor Emeritus (Research) in the Stanford University School of Engineering and a senior fellow with the Freeman Spogli Institute for International Studies at Stanford University. He is the former co-director of Stanford University's Center for International Security and Cooperation, having served seven years in that capacity through January 2000.

May is a director emeritus of the Lawrence Livermore National Laboratory, where he worked from 1952 to 1988, with some brief periods away from the Laboratory. While there, he held a variety of research and development positions, serving as director of the Laboratory from 1965 to 1971.

May was a technical adviser to the Threshold Test Ban Treaty negotiating team; a member of the U.S. delegation to the Strategic Arms Limitation Talks; and at various times has been a member of the Defense Science Board, the General Advisory Committee to the AEC, the Secretary of Energy Advisory Board, the RAND Corporation Board of Trustees, and the Committee on International Security and Arms Control of the National Academy of Sciences. He is a member of the International Institute on Strategic Studies, and a Fellow of the American Physical Society and the American Association for the Advancement of Science.

May received the Distinguished Public Service and Distinguished Civilian Service Medals from the Department of Defense, and the Ernest Orlando Lawrence Award from the Atomic Energy Commission, as well as other awards.

His current research interests are nuclear weapons policy in the US and in other countries; nuclear terrorism; nuclear and other forms of energy and their impact on the environment, health and safety and security; the use of statistics and mathematical models in the public sphere.

May is continuing work on creating a secure future for civilian nuclear applications. In October 2007, May hosted an international workshop on how the nuclear weapon states can help rebuild the consensus underlying the Nuclear Non-Proliferation Treaty (NPT). Proceedings and a summary report are available online or by email request. May also chaired a technical working group on nuclear forensics. The final report is available online.

In April 2007, May in cooperation with former Secretary of Defense William J. Perry and Professor Ashton Carter of Harvard hosted a workshop on what would have to be done to be ready for a terrorist nuclear detonation. The report is available online at the Preventive Defense Project. A summary, titled, "The Day After: Action Following a Nuclear Blast in a U.S. City," was published fall 2007 in Washington Quarterly and is available online.

Recent work also includes a study of nuclear postures in several countries (2007 - 2009); an article on nuclear disarmament and one on tactical nuclear weapons; and a report with Kate Marvel for the American Academy of Arts and Sciences on possible game changers in the nuclear energy industry.