This examination of the implementation of the nuclear non-proliferation regime focuses on critical developments, technological in particular, currently endangering the regime. Crucial technologies affecting nuclear weapon proliferation and their potential ramifications for the NPT regime as a whole are examined and potential policy options which could ameliorate or perhaps eliminate the resulting dangers are analyzed. Developments and problems raised by the nuclear programs in Iraq and North Korea receive special attention. The book contributes to the discussion and debate occurring in preparation for the 1995 NPT Extension and Review Conference.