SESSION UI 147 sevarate sets of assumptions you can start off with and each one feads in a different direction. I[ bring this out because in the very simple hypothetical situation we had in which only two counties in northern New York State were exposed to the bomb we couldn't settle down to really reach conclusions as to what we should do because there were different kinds of assumptions you could start off with which lead in different directions, [ think if we had a nuclear war it would not take very long to list 50 different things which would make what you were planning tv do quite different. EISENBUD: BRUES: Yea. You have innumerable little judgmenta in the case of water. If someone has a half-pint of water, how much does he drink and how much does he wash off with? FREMONT-SMITH- Exactly. BRUES: And does he drink contaminated water or does he wash off with it, or both? Nxt L EISENBUD: May I take a poke at the government again in connection with this. This was the first shot of that Castle series and it delayed the second shot. It proved what a lot of people had suspected; you can have massive fallout foliowing a surface detonation of a megaton bomb. Based on early, very sketchy data collected by two or three individuals, certain isodose curves were drawn which are, at best, approximations. Those of us who have had the experience of actually measuring these fallout patterns from smaller weapons find that tley are not quite so uniform, that they tend to be amoeba-like and are harder to find. There arose out of this experience the need for an experiment which would make it possible to get better approximations of the total amount of debris that falls out; physical and chemical characteristics. This wasn't done, and as far as I know hasn't been done in any other subse-~ quent explosions during the period when they were still testing in the Pacific. I think that, from the point of view of national security, we are without information which is padly needed. Now, it's needed to simply answer questions. It may be totally useless in the sense that there may not be, even with the present in- formation, a satisfactory answer to all the complications of mass fallout and the way it would interact with blast. ,