omer This document gonsists of 1 Ave Copy No, of__ 30 pages Serics_AEC-A ! 411195 DEPARTMENT OF DEFENSE MILITARY LIATSON COMMITTEE P, 0, BOX 1814 WASHINGTON 13, D.C, June 18, 1958 Dear Mr, Strauss: In a letter dated 5 June 1958,* the General Manager of the Atomic Energy Commission requested Military Liaison Committee concurrence in the declassification of the cxact location and the exact time of the Operation HARDTACK detonations which are to be jointly announced, Except as noted below, the Department of Defense concurs in the declassification of the exact location (to the nearest second) and the exact time (to the nearest 0.1 second) of Operation HARDTACK detonations which are to be the subject of joint AEC-DOD announcements. However, release of this information concerning YUCCA, TEAK, ORANGE, WAHOO, UMBRELLA and ARGUS, in which the Department of Defense has the primary interest, may reveal additional information of significance which should be protected, It is recommended that no data for the Department of Defense shots be released until the information has been subjected to a technical review and evaluation by the Department of Defense, It is suggested that prior to the actual release of any data on the exact time and place of the HARDTACK detonations, Dr. James B. Fisk, Chairman of the U.S. group which has been designated to discuss with the Sovicts methods for policing a test moratorlum, be consulted, 3fo5 Ww = 5-95 B Ripe Honorable Lewis L. Chairman U.S. “| ot pop. | Ee Strauss Atomic Energy Commission *"On file in DMA | = Sincerely yours, /s/ S$ Herbert B. Loper Chairman 5 ssitvear saan . CLASSIFICATION: Cann FD. fea ana Ut LAU gy Oy cys" fool ' }j PE? 2d /-# Ct. FAZz Kl jo This materlal contains informeton affecting the national dufense of tne United States within the meaning of the espionage lews, Title 18, U.S.C,, Sec. 793 and 794, the transmission or revelation of which in any manner to an unauthorized person is prohibited by law, j

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