First introduced in Freakonomics, here is the full story of Sudhir Venkatesh, the sociology grad student who infiltrated one of Chicago's most notorious gangs a... » 

First introduced in Freakonomics, here is the full story of Sudhir Venkatesh, the sociology grad student who infiltrated one of Chicago's most notorious gangs and befriended the gang leader.

Venkatesh is a professor of sociology and African American studies at Columbia University. His writings have appeared in The American Prospect, This American Life, the Source, PBS and National Public Radio. «