Not to be too pedantic but (2016) on this title makes some difference considering recent events.
The Man Who Terrifies Wall Street: former U.S. Attorney Preet Bharara
The Man Who Terrified Wall Street: former U.S. Attorney Preet Bharara
Indians among most corrupt while doing business abroad http://business.rediff.com/report/2009/sep/24/indians-among-...
Contrast this with https://www.propublica.org/article/when-it-comes-to-wall-str...
The lesson I take is not that he was bad at his job or intentionally avoided top level investigations, but that nobody really terrifies Wall Street.