Bloomberg Markets' 50 Most Influential

By Bloomberg Markets - 2012-09-05T07:58:26Z

Photograph by Fred R. Conrad/The New York Times

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23 of 55

Preet Bharara

Prosecuter, U.S. Department of Justice.

With 66 insider-trading convictions so far during his tenure as U.S. Attorney for the Southern District of New York, Bharara, 43, has established himself as the watchdog with bite. He's in the post that launched Rudy Giuliani's political career.