\ - Ge 408677 R COLLECTION s!-S¥he Box No, [U1 (MNS - 324 - 97-071) ron MCA] Kondbad. V] cial Briefing on Fallout Program for Operation HARDTACK = aeg 0} ws oO ~~ iw Ia D wii, REPOSITORY : F om: Pp ; general Starbird comnmentec on the Commisaion's decision at Meeting 1275 on April 9, 1957, that a prin objective in Operation HARDTACK is the accurate establishment of locai fallout in ordanr that the world-wide contribution can be accurately calculated by difference. He said that in response to the Commissioners! request at that time th:t they review in September, 1957, the plans for a fallout progzam for Operation HARUTACK, a special briefing had been scheduled to inform the Commission of tentative plans for this program, General Starbird added that in particular, guidance is needed from the Commission on that phase of the program requiring ships which the Department of the Navy now plans to place in the reserve fleet on July 31, - 1957 « Mr, Graves explained that while reasonable estimates of total fallout can be made for each shot, consideration is being given to five experiments which would provide more accurate information on falleut in local and intermediate areas, and also world-wide fallout, With respect to the first experiment to be conducted in connection with the two high altitude shots, Mr, Graves said vaat valuable information on the over~all fallout pattern from these shots would be obtained by adding thalium to the weapons to serve as a sadioactive tracer, Mr, Strauss auestioned whether thig radioactive tracer might not mix with fallout from previous shots of the U,S, of ather countries, commented oviefiy on the plans for this experiment, Mr. Graves indicating vnat the situation suggested by Mr, Strauss was not likely. ~2- CLASSIFICATION CANCELLED BY AUTHORITY OF poEe/oc REVIEWED BY : 3/23(¢¢¥ DATE H.R, Seh midBUS og By: Ld . eteeh 3] late Sow how / BEST COPY AVAILABLE ~ 12958th AC Meeting 7-24-57 8 ~