The arrest of traitor FBI agent Robert Hanssen devastated US intelligence agencies, raising more than a few questions about how he’d sold secrets for more than two decades. The spy met his ...

Robert P. Hanssen, a former F.B.I. agent who spied for Moscow off and on for more than two decades during and after the Cold War in one of the most damaging espionage cases in American history, ...

Eric O’Neill took to Twitter, saying he regrets not asking Robert Hanssen -- the former FBI agent who was sentenced to life in prison in 2002 for spying on America for Russia -- why he betrayed ...

Robert Hanssen, a former FBI agent who received more than $1.4 million for committing espionage on behalf of Moscow, died in prison, officials said.

Robert Hanssen, the FBI agent who led a double life as a Soviet spy, died in a prison cell this week. Hanssen may no longer be a household name, but he is still considered the most damaging spy in ...

Robert Philip Hanssen, who received payments of $1.4 million in cash and diamonds for the information he gave the Soviet Union and Russia, has died, the Federal Bureau of Prisons announced Monday.

Notorious spy Robert Hanssen was found dead in federal prison at the age of 79. Getty Images. Hanssen’s nefarious activities began in 1985, when he had been working for the FBI for almost a decade.

FBI agent Eric O’Neill, who was just 26 when he went undercover to help catch traitor Robert Hanssen, tweeted following the spy’s death that he’d hoped for one final face-to-face meeting ...

Hanssen, 79, was found unresponsive in his prison cell, officials said. One of America's most notorious spies, Robert Hanssen, was found dead on Monday at a maximum security prison in Colorado, a ...

Robert P. Hanssen, a former FBI agent who pleaded guilty to spying for Moscow for years in one of the most devastating intelligence breaches in American history, died June 5 at the maximum ...

Robert Hanssen, who’d jumped from the Windy City police force to the FBI just three years earlier, offered to hand over top-secret details to the GRU, ...