118 , 1 the people that are interested in dose to ask them to write 2 a separate addendum amplifying the uncertainties. 3 DR. BUGHER: 4 CDR. CRONKITE: Then we get away completely from 5 the Neptunium, and the unfortunate statements in the first 6 report of talking about tritum and lithium and one thing and 7 another, and our ignorance of whether they were important or 8 not. 9 Alderson Reporting Company Washington, D. C. Yes. DR. BUGHER: Yes, I think that is a good point. 10 When it comes to the proportions of isotopes in fission 11 products in the fallout material with respect to those 12 that are of medical importance, we have essentially released 13 that information to the Japanese in the following form, 14 that is, we have told 15] substances followed the bimodal efficient curve for uranium 16 235 for fast neutron fission with respect to the modal 7 regions, not with respect to the other. 18 information, that while we were not saying that what we were them that the pattern of those We gave them this 19 | ddaling with there was a fission reaction ompletely, that ARC 20 they covld use those parts of the published curves and it 21 would give them approximately the relative amounts of those Be isotopes, _ 2 “ on cesium, barium, lanthanum, that appeared to be in the material that fell out. 4 So that much of the statement is already essentially 25 public knowledge, because if we have given it to the Japanesd, Departmant of Engeay fer gtavios Pm such as strontium, Ly toe