9, DMA's re-analysis (checked with Los Alamos, who would furnish the device; with Livermore, who would do the radiochemical analysis; and with the JTF Commander, who would handld all. arrangements in the forward area) indicates the followings a, It would still be possible to arrange for the observation in.a manner as stated in paragraph 4, a above cf, fi feop pee tfe FEY. Phe Sao “ re as-to reduce to a minimum interference with other activities and give maximum time for preparation; the shot could then be fired during July. b, Costs to the AEC would be moderate and, in view of the fact that most would fall in FY 1959, allocation of additional funds-in FY 1958 would not be required, Cost to the DOD would be primarily that of retaining ships, aircraft and crews in the operation up to an additional two weeks, c. We would plan on assembling the observers (in numbers say of 15 for the U,N, delegation and approximately 15 of the press) in Honolulu several days before the shot, They would be called to the forward area by the JTF Commander two or three days before firing and there they would have explained to them the instrumentation set up for measuring total yield, the procedures to be followed for securing samples, and the methods to be followed in analyzing samples, They would be given the weight of the lead box and the weight of the tracer and the lead box and the tracer would be shown to them, in the area long enough They would stay to observe the return of the sample aircrart and the placing of the filter paper in containers for shipment home and then would fly back to Berkeley with the samples, The analyses, requiring approximately two days, would be conducted at Berkeley with continual observation allowed to the observers, d. The possible dangers in this observation are unchanged from those described in AEC summarized in paragraph 5. above, 952/20 and e, The duration of the firing and operational period of HARDTACK would be prolonged by some 7 to 10 days to accomplish this shot. One added large yield device would be fired, CONCLUSIONS 10, If international and propaganda considerations require a demonstration, from a technical viewpoint, a demonstration can still be arranged, if arranged it should be capable of proving to an unbiased observer that the device was clean, — 4 _ RET SECIR The =

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