What did Hanssen reveal about the FBI's operations against the Soviet Embassy?
Wiretapping
Informants
Eavesdropping tunnel
Surveillance cameras
Answer
Robert Hanssen revealed the existence of a multimillion-dollar eavesdropping tunnel built by the FBI under the Soviet Embassy. This was one of the many intelligence breaches he was responsible for during his espionage activities.
Double Agent Dilemma: The Intriguing Robert Hanssen Espionage Quiz