[en] Following an introductory, historical note, the abridged and revised version of the monograph falls under sections, entitled: the trends and the questions they pose (analysis of trends in the spread of nuclear technology and forecasts of ability of various countries to produce material for weapons); primer on technology (requirements for building a nuclear weapon); on keeping 'dangerous' activities in check (nature of the problems of warning or safeguarding); economic aspects of nuclear proliferation (raw material supplies, reprocessing, comparative costs of uranium and plutonium fuels); thinking through the middle power nuclear option - the case of Japan; life in a nuclear crowd (internation politics in a world with an increasing number of countries or extra-governmental groups possessing, or able to possess, nuclear weapons). (U.K.)