225 SESSION IV ROOT: You mean if you hadn't moved them off at all it would have been a minimal hazard? CONARD: I would say that it probably would. I don't think that I want to stick my neck out that far because I really haven't calculated what the tota' dose would be if they had remained on the Island continuously, but certainly it's not anywhere near the range of the acute immediate hazard. ROOT: That's « good shelter hypothesis—if you can get them all under shelter duriny the actual fallout, they could emerge the next day perhaps without danger? CONARD: I wouldn't say the next day. AYRES: That's a standard Civil Defense notion that if you shelter for a couple of weeks, during that time the activity drops by a factor of 100 and then you're probablyall right. CONARD: Mostof the radioiodine by that time has decayed. EISENBUD: Things had quieted down in the summer of 1954 and the then, I guess we forgot to mention yesterday, the Russians started a test series in September and the fallout levels to Japan were actually heavier in September than they had been during the period when we were testing the previous spring. But things had quieted down, anyway, which led many of us to believe that the commotion in Japan in that time was at least in part motivated by Communist propagandists, Well, one of the things that happened in the early fall, particularly I think motivated in part by the Russian test, was that the Japanese decided that they didn't get the most out of the visits that some of us had made the previous spring. They wanted to have a radiobiology conference and they in: ited the Atomic Energy Commission to send a group over, About a dozen of us went over in November and sat _ with our counterparts in Japan and had two weeks of very worthwhile discussion with them. Interestingly, and apropos of the remarks I made yesterday about the schism in Japanese medicine, there were no Japanese physicians in their delegation and we were discreetly asked not to include any in ours so that they wouldn't have to pick or choose between Tsuzuki and - his opponents, So the conference included geneticists, physicists,