U.S. Cryptologic History Report Regarding the Attack on the Liberty
(June 8, 1967)
On July 2, 2003, the National Security Agency (NSA) released additional information relative to the June 8, 1967, attack on the U.S.S. Liberty. The U.S. Cryptologic History Report dated 1981, is a less redacted version of the same document originally released in 1999.
“Attack on a SIGINT Collector, the U.S.S. Liberty” (PDF Format)
Source: National Security Agency