QS VED Tas HD th th SIENCIRIE, | Loam ab beer da dl ob Department of O:fense has felt the expenditure of vital atomic weapons materials for this type of test, single agency. is not justified. for the benefit of a See Status Report No. 4 to the ARC on DOD Atonie Energy Activities circulated for information in AEC 415/2). i, However, no inquiry has been inade into the Department of Defense's abtitude toward a scparate test designed to provide: offects data. for the FCDA, the Department of Defense, and AEC. Under these circumstances, their attitude might pe favorable should a combined effects program appear important cnough to _ justify a special shot. 8. Press attondanee at a fubure shot is also a probable requirement. This can most casily and advantageously be arranged in con junct ton with a nominal shot whose security requirements ore minimal. DISCUSSION a O. There can be no question that the AEC and the Department of Defense are jointly interested In both weapons development data and weapons effects data, while FCDA also has an important, soniewhat different Would appear that interest in effeets alone. but Nevertheless, it the primary interest and responsibility of the Commission lies in the de @lopment ficld, while the Department of Defense would seem to be more interested in the effects and uses of the weapon as delivercd requirements. in response to the announced military Both the AEC and the DOD have strong secondary interests in effects and development, respectively, can probably never be complete separation of the so that there two interests. 7. Economy of fissionable material dictates the most effective over-all use of cach atomic detonation to obtain the maximum data

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