Party affiliation: Republican
Lecturer Rosary College, Chicago, 1979, University Chicago, 1980. Public Affairs fellow Hoover Institution, Stanford, California, 1981. Consultant National Intelligance Council Director of Center Intelligence, McLean, Virginia, 1982.
Legislation aide for nuclear energy matters Sen. Gordon Humphrey, Washington, 1982-1983. Senior military legislation aide Sen.
Dan Quayle, 1984-1988. National security advisor Vice President's Transition Office, 1988-1989. Consultant Office Net Assessment, Secretary of Defense, 1989.
Deputy for non-proliferation policy Secretary of Defense, 1989-1993. Executive director Nonproliferation Policy Education Center, since 1994. Member United States Commission on the Prevention of Weapons of Mass Destruction Proliferation & Terrorism, 2008.