Keywords: FBI arrests Judith Coplon, March 4, 1949.jpg FBI arrested Judith Coplon on 4 march 1949 She became the first person prosecuted for espionage as a result of the successful «Venona» project ™s detection of Soviet intelligence cable traffic https //www cia gov/about-cia/cia-museum/experience-the-collection/images/timeline/timeline_popups/030449 jpg at https //www cia gov/about-cia/cia-museum/experience-the-collection/index html /event/69 1949-03-04 Not provided PD-USGov Venona project PD-USGov |