1/ #OTD IN COUNTERINTELLIGENCE AND SECURITY HISTORY: On July 17, 1950, Soviet spy Julius Rosenberg was arrested for espionage. The Army Security Agency and FBI had been cooperating in the decryption of intelligence messages -- a portion of which were collectively referred to... 
2/ as "VENONA" -- exchanged by the Soviet KGB and GRU with their agents in the Western Hemisphere. Some of these messages incriminated Rosenberg, but this highly classified evidence could not and would not be used during his trial.
3/ Rosenberg's wife Ethel was arrested on Aug. 11, 1950 on suspicion of assisting him. Thanks to key testimony from David Greenglass, Ethel's brother, Julius Rosenberg was exposed as the central figure in a very active spy ring that was passing weapons technology information...
4/ to the Soviet Union. In 1951, the Rosenbergs were convicted of conspiracy to commit espionage. Read the declassified FBI (@FBI) Headquarters Case File here vault.fbi.gov/rosenberg-case and CIA's (@CIA) documents here cia.gov/library/readin….
5/ The first of 6 public releases of translated VENONA messages was made in July 1995 and included 49 messages about the Soviets' efforts to gain info on the U.S. atomic bomb research and the Manhattan Project. Over the course of 5 more releases, all of the approximately 3,000...
