Documents / FOIA release
This Central Intelligence Agency briefing from 22 August 1952 presents the Office of Scientific Intelligence review of the Air Force flying saucer investigation, with attachments dated 14 and 19 August. It traces sightings from 1947 and explains most as balloons, aircraft, astronomical bodies or atmospheric effects. About 20% remain unexplained. The briefing rules out US or Soviet weapons and space ships. Its main concerns are psychological warfare, false alerts to air defense, and civilian saucer groups.
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reported to be traveling at terrific speed at 30,000 feet. It happened that the reporting station had a searchlight and it was turned on in the direction of the radar sighting. It was immediately discovered that the objects were Canadian goose flying at 300 feet altitude. The above explanations are believed by ATTO to account for some 80% of the sightings reported. They feel that the remaining 20% might be reducible to 10% were it not for these reasons: Insufficient information reported. This still leaves ATIS with a possible 20% of sightings for which there is no available explanation. Considering that the remaining cases might have been caused by little understood natural phenomenon, the OSI Panel conferred at length with three of our consultants in Boston. These men are outstanding in the fields of geophysics, electronics and chemistry. They emphasized to us that there
FOIA release, from the cia-readingroom collection. The PDF is mirrored here; the original link is above. The text was read from the page images by GLM-OCR; expect the odd misread word. 29 pages are in the text index: search them above, or from the library's search.