of Pouuth AEC 4 Meeting 12_9-53 ~ 4 2 3 x z 2, wactos 408956 6. AEC 483/47 - Film on Operation IVY (See minutes of Meeting 939) Under consideration was a report by the Directors o Classification and Information Services, recommending in part that the Commission determine that the information ‘ disclosed in the deleted version of the "Operation IVY" < Ww film may be published without adversely affecting the common defense and security. Mr. Beckerley observed that the film ( shown to the Commissioners at Meeting 939 which had been contained certain information which it would be necessary to declassify formally before it could be shown on December 14 as now proposed. Concerning the general public release of the ‘ film, Mr. Salisbury said that this matter had been discussed we oe with members of the Military Liaison Committee but that y apparently they had not determined their position on this matter. , After further discussion, the Commission: a. DETERMINED that the information disclosed in IVY", which was screened at Commission Meeting 939 J on November 12, may be published without adversely affecting the common defense and security; oa b. NOTED that no information remains in the film which would give any indication as to the nature of the thermonuclear reaction, or to the manner in. which it 18 brought about; c. NOTED that this film will first be shown to the forthcoming Mayors! Conference and that it will be marked "Official Use Only" for that occasion; ad. NOTED that the MLC will be informed of this action by appropriate letter; and e. NOTED that the question of the public release of the film would be considered at a later meeting. (hb, 4.0.8. YAAy— the deleted version of the documentary film "Operation CONFIRMED TO BE UNCLASSIFEB :