z — —GONFIDENTIAEC™. ——S—trhE 7. The feasibility of the program is dependent on: a, Adequate measures for controlling test observance in such manner as to prevent revelation of classified information; b, Availability of a suitable ship which possesses adequate communications and accomodations; ec, Availability of suitable aircraft for transportation, observation, and courier purposes; and ad. Estimated cost of program, and availability of funds. 6, The program is based on the premise that the special observers involved will not have access to classified information. It is considered necessary, however, to declassify the following presently classified information for the special observer program: | a, Advance notice of the expected date of detonation of the selected shot ‘now Confidential - Defense Information) ; bo. The yield of the selected shot is expected to be (and was) several megatons (now Confidential Restricted Data); c. The selected shot is to be (and was) an -airburst (now Confidential - Restricted Data); d, The code word REDWING when associated with the 1956 test operation (now Confidential - Defense Information); and e. Information that the test detonation has taken place (prior to the official AEC-DOD announce- ment )(now Confidential - Defense Information). 9. The Division of Security is concerned as to the possibility of inadvertent disclosure of classified information, but believes that the possibility of such compromise can be minimized with appropriate security measures which will not interfere unduly with the objectives of the program, Such measures will include isolation of the special observers, carefully prepared briefings, ©J Br game 5 * t * send a & ed”Lee + a on wee Se by

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