Feb. 20 -- Accused spy Robert Hanssen was arrested under dramatic circumstances on Sunday, but the FBI's investigation of him involved months of less glamorous legwork. Concluding a four-month ...

WASHINGTON (AP) — Robert Hanssen, a former FBI agent who took more than $1.4 million in cash and diamonds to trade secrets with Moscow in one of the most notorious spying cases in American ...

Former FBI undercover operative O’Neill delivers an adrenaline-laced memoir of his clandestine efforts to bring down Robert Hanssen, FBI agent and double-agent Russian spy. His assignment: go ...