DOD Report: Changes in Espionage by Americans: 1947-2007
Technical Report 08-05 March 2008 – Changes in Espionage by Americans: 1947-2007, by Katherine L. Herbig, Northrop Grumman Technical Services. Released By James A. Riedel [via FAS] “Since 1987, the Defense Personnel Security Research Center (PERSEREC) has maintained a database on espionage by American citizens based largely on open sources, and has collected files …