~182 Where this fallout will fall out 3. What will happen to it (a) how much will decay or otherwise be harmless (ob) how much will directly effect man as internal or (c) external radiation how much damage, if any, man will suffer from it Using the knowledge now available, how much information does one need to postulate concerning the characteristics of future weapon firings (test or war) so that one could predict with a certainvy appropriate for policy-making purposes the same sort of information as discussed above for future firings? l. Is such a prediction possible even assuming unlimited information concerning the firing characteristics? How would it be made? Is a postulated rate of firing (yield per unit time) meaningful? What in principle does "present rate of firing" mean? Is a postulated rate of firing sufficient information by itself for making the sort of prediction named here? How does one take into account such problems as divers sites of firing, firing of weapons whose characteristics are not known, differences in weapon type and burst Are the present criteria for biological damage adequate and are the related measurements adequate so that one could predict with a certainty appropriate to policy-making the future hazard, if any, owing to future weapon firings ~even if he could forecast how much fallout there would be and what would happen to it? If the criteria are adequate, how are they put together? JCAE If one had before himself a working definition of hazard that was satisfactory from a moral or ethical, social, political, and economic point of view, and if this definition was stated in terms of measureable or observable pnenomena in nature (including man), does sufficient information exist so that he could determine, again with a degree of certainty appropriate to policy-making, whether or not a hazardous situation exists now or will exist in the future for various possible circumstances of weapon firings and radioactive fallout? Could he determine the degree of hazard? If their answers are "no", is it possible to state what information is lacking and how it might be obtained? 2

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