Documents / FOIA release
This is a CIA History Staff monograph by Gregory W. Pedlow and Donald E. Welzenbach, written in 1992 and approved for release in 2011. It covers the CIA's manned overhead reconnaissance program from 1954 to 1974 and its two aircraft, the U-2 and the A-12 OXCART. It follows their development, the overflights of the Soviet Union, the downing of Francis Gary Powers in 1960, and later operations. One section is titled "U-2s, UFOs, and Operation BLUE BOOK."
CO5653421 UNCLASSIFIED (0 12958 6.11c1<10Yrs Warning Notice Intelligence Sources or Methods Involved (WNINTEL) National Security Information Unauthorized Disclosure Subject to Criminal Sanctions Dissemination Control Abbreviations NOFORN (NF) Not releasable to foreign nationals NOCONTRACT (NC) Not releasable to contractors or contractor/ consultants PROPIN (PR) Caution—proprietary information involved ORCON (0C) Dissemination and extraction of information controlled by originator REL... This information has been authorized for re- lease to... WN WNINTEL—Intelligence sources and meth- ods involved- Classified b Declassify: Derived from multiple sources All material on this page is Unclassified. UNCLASSIFIED
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FOIA release, from the cia-readingroom collection. The PDF is mirrored here; the original link is above. 406 pages are in the text index: search them above, or from the library's search.