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This CIA document, released through The Black Vault, holds F. C. Durant's memorandum of 16 February 1953 on the Office of Scientific Intelligence Scientific Advisory Panel on Unidentified Flying Objects, which met from January 14 to 18, 1953 under Dr. H. P. Robertson. The panel found no evidence of a direct threat to national security. It rejected the Navy analysis of the Tremonton film and recommended an educational program. The file also contains an Air Force statistical study summary from 1955 that calls advanced unknown technology highly improbable.
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d. Objects in the Great Falls case were believed to have probably been aircraft, and the bright lights such reflections. e. There was no valid reason for the attempt to relate the objects in the Tremonton sighting to those in the Great Falls sighting. This may have been due to misunderstanding in their directive. The objects in the Great Falls sighting are strongly suspected of being reflections of aircraft known to have been in the area. f. The intensity change in the Tremonton lights was too great for acceptance of the P.I.L. hypothesis that the apparent motion and changing intensity of the lights indicated extremely high speed in small orbital paths. g. Apparent lack of guidance of investigators by those familiar with U.F.O. reports and explanations. h. Analysis of light intensity of objects made from duplicate rather than original film. The original film was noted to have a much lighter background (affecting relative brightness of object) and the objects appeared much less bright. 1. Method of obtaining data of light intensity appeared faulty because of unsuitability of equipment and questionable assumptions in making averages of readings. j. No data had been obtained on the sensitivity of Kodachrome film to light of various intensities using the same camera type at the same lens openings. SECRET Security Information
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