Iv DASA 2019-2 of circumstances and events leading from these localized incidents through the news media and diplomatic channels to the reactions of the more complex social structures, such as the economic, political, and diplomatic repercusrions of national and international scope. There was much discugsien of possible reasons for differences in reaction to incidents of these kinds amony different nations; the im- portance of seeking answers to such questions in the criferences in culture, 48 well as in politics, was stressed, On the basis of the discussion of the specific incidents and their consequences, the conferees roamed the whole field of psychosocial and biomedical implications of nuclear warfare in an attempt to project the consequences of nuclear warfare under a variety of conditions with respect to magnitude of the warfare, anticipation of onset, preparedness, and civil and military defense policies. Interest was focusaed upcn policies and means which might help to prevent or to mitigate nuclear warfare, upon the nature, scope and consequences of nuclear warfare should it occur, and upon the problems of national recovery after nucicar warfare, The participants of this conference included Dr. Frank Fremont- Smith, director of the New York Academy of Sciences Interdisciplinary Communications Program; the two co-chairmen of the conference, Dr, Austin M. Brues, and Dr, Arthur C. Upton; the discussion initiators for the five major subjects on the ayenda, Dr; Charles L. Dunham (the 1954 thermonuclear test), Dr. Robert A, Conard tthe . 4 . : effects of fallout on populations}, Dr, Lauren R, Donaldson tecolopical aspccts of weapon testing), Dr. Wright Hl. Langham ithe Spanish incident), and Dr. Merril Eisenbud (discussion of psychosocial reace tions); and others listed on the following pages.