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![]() ![]() The second release provides the public with a new collection of documents focused on the HEXAGON program. ![]() The first release of documents accompanied the formal announcement of the declassification. On 17 September 2011, the NRO declassified the HEXAGON and GAMBIT satellite reconnaissance programs. ![]() HEXAGON (KH-9) also known as or partially contained in FULCRUM, S-2, and HELIX, emerged from competing concepts to provide a surveillance system that flew 20 missions (1201-1220) from June 1971 through April 1986. ![]()
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