THE FBI: Cement Head v. The Dirty Dozen

Like other agents in charge of the FBI's 59 field offices, John F. Malone, known as "Cement Head" to his colleagues, was a cautious man. When he headed the New York City office from 1962 to 1975, he followed the instructions of FBI headquarters to the letter and stashed his most sensitive papers in a private safe to keep them beyond the reach of nosy congressional investigators.

But the system was not foolproof.

Malone must have forgotten his superiors' orders to shred each year what was probably the touchiest record of all. Thus, when...

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