He wasn't just hunting a spy.

He was hunting a ghost hiding within the FBI.

You're about to hear one of the most incredible spy stories of all time from the FBI agent who hunted down an American traitor.

Welcome to the global phenomenon, surviving the survivor, where we bring you the

best guests in all of true crime. Here's your host, Emmy award-winning journalist Joel Walton.

What's up, St.S. Nation? Welcome to Survive and the Survivor. This is the global phenomenon,

bringing you the very best guests in all of true crime and buckle up.

Because tonight, this is the story of a pair of FBI agents, really a team of FBI agents,

but one of the more central figures who spent decades, the spy, that is, working for Russia.

A man trusted to protect America's most sensitive Cs. the spy, that is, working for Russia.

A man trusted to protect America's most sensitive secrets who instead sold them for the almighty dollar.

And the operation to catch them so sensitive

it had to be run off the books

because the mole might have been watching from inside

the bureau this is the story behind a traitor in the FBI the hunt for a Russian mole by

Wayne Barnes it was an unprecedented covert mission involving fake identities, behavioral profiling, and one high-risk play to expose the most damaging spy in FBI history, Robert Hansen.

Joining us now, the man who didn't just study this case, he actually lived it, a 29-year FBI

veteran in counterintelligence who helped hunt down the mole from inside the bureau. And here he is,

author of a traitor in the FBI, Wayne Barnes. Wayne, first of all, thank you for your service to our nation.

What prompted you?

I think you've been retired for a decent amount of time.

You look fantastic.

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