Clay Moltz, Monterey Institute of International Studies/Naval Postgraduate School; Lt. Col. Peter Hays (ret.), Science Applications International Corporation; Rebecca Johnson, Acronym Institute; John Logsdon, George Washington University. This session was part of the 2007 Carnegie International Nonproliferation Conference, “Tomorrow's Solutions,” June 25–26, in Washington, D.C., which addressed the critical challenges confronting the nonproliferation regime and offered policy recommendations to stop the spread and use of nuclear weapons and materials.