Robert Philip Hanssen was an American Federal Bureau of Investigation agent who spied for Soviet and Russian intelligence services against the United States from 1979 to 2001. His espionage... Wikipedia
- Birth name: Robert Philip Hanssen
- Born: April 18, 1944, Chicago, Illinois, U.S.
- Died: June 5, 2023, ADX Florence, Fremont County, Colorado, U.S.
- Occupation: FBI agent (1976–2001)
- Alma mater: Knox College (BS), Northwestern University (MBA)
- Data source: DuckDuckGo