tests series thru LASL and not thru DASA as it should according to Brown. He just tries to clarify the procedures as the DOD feels they should be followed for including AEC measurements on DOD shots and for properly propos ing DOD tests thru DASA. The second letter from Brown addresses the letter to the President on 29 Nov. with the possible atmospheric shot list and gives Brown and the DOD's specific disagreements. He lists 6 of the AEC tests which for one reason or another the DOD does not feel should. be included in the initial list. Basically they feel they don't meet the following criteria: "they can be fully justified on the basis of real (tho not necessarily immediate) military importance, and there would be very great difficulity in performing them in other environments." Brown makes no mention of communicating these disagreements and exclusions to anybody but Seaborg. Note that there were frequent exchanges between Mainkins of the United Kingdon, Seaborg and Rusk, as well as other high level officials, thru Dec. addressing the agreement and planning and working out of details for testing the UK device in Nevada. _6 A 1 Dec. TWX from Froman to Betts covers the LASL proposal for additional ‘6 |ten altitude shot. He notes that neither of the DOD proposed shots are fully Ape | satisfactory for learning how to test warheads in space, in particular because with the yield and altitude of Starfish, it is so close as to cause serious saturation problems in detectors suitable for diagnostics in space testing. Froman believes we should check out the methods of testing in space in order to avoid ignorance in that field such as we have had about underground testing. Specfically, LASL proposes that the AEC sponsor a shot of 1000 or more kilometers altitude and of 165 kilotons or less. Additional merits to this proposal are that the incremental costs will be small for the AEC since they will certainly instrucment and be highly manned for the 400 kilometer shot, and also Argus effects for the DOD, data relevant to Vela Hotel, and Vela Sierra, and pure physics data, as well as some data on fallout from that altitude.

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