Neo-Nazi Mole

When its informant’s cover was blown, German intelligence destroyed his files. Did his handlers fail to pick up a violent cell that would eventually murder nine immigrants and a cop in order to preserve their asset?

Kevin Roose, a writer at New York, has contributed to The New York Times, GQ and Esquire. His latest book is Young Money: Inside the Hidden World of Wall Street's Post-Crash Recruits.

"Google will give you away. I feel like one undercover book is all you get these days before the jig is up. ... Unless, like Barbara Ehrenreich, you legally change your name. I was not quite prepared to go that far."

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