Project SHAMROCK
Project SHAMROCK, considered to be the sister project for Project MINARET, was an espionage exercise, started in August 1945 that involved the accumulation of all telegraphic data entering into or exiting from the United States. The Armed Forces Security Agency (AFSA) and its successor NSA were given direct access to daily microfilm copies of all incoming, outgoing, and transiting telegraphs via the Western Union and its associates RCA and ITT. NSA did the operational interception, and, if information that would be of interest to other intelligence agencies was found, the material was passed to them. “Intercepted messages were disseminated to the FBI, CIA, Secret Service, Bureau of Narcotics and Dangerous Drugs (BNDD), and the Department of Defense.” No court authorized the operation and there were no warrants.

