Secretary of Defense Donald H. Rumsfeld announced today that Stephen M. Younger has been selected as the director of the Defense Threat Reduction Agency. He will begin his duties on Sept. 1, 2001.
Younger is presently the associate laboratory director for nuclear weapons at Los Alamos Laboratory, Los Alamos, N.M. Previously he served as the program director for nuclear weapons technology, a position that carried primary responsibility for the laboratory's nuclear weapons Stockpile Stewardship Program.
Younger began his career at the National Bureau of Standards in Washington, D.C., where he worked on various topics in theoretical atomic physics. In 1982 he joined the Nuclear Design Department of Lawrence Livermore National Laboratory, Livermore, Calif. At Livermore he specialized in advanced nuclear weapons design and led design groups for the nuclear-driven x-ray laser and other nuclear explosive concepts. He moved to Los Alamos National Laboratory in 1989 and led programs in inertial confinement fusion and aboveground experiments.
Younger holds a bachelor of arts in physics from Catholic University of America, Washington, D.C., and a master of science and doctorate degree in theoretical physics from the University of Maryland.
The Defense Threat Reduction Agency is a Department of Defense combat support agency located at Fort Belvoir, Va.; it operates field offices worldwide.