The New York Times, June 1, 2009 by Solomon Moore
http://www.nytimes.com/2009/06/02/us/02fbi.html
“Serious criminal behavior is so intensely concentrated in pockets of the nation that the kids who are committing crimes are usually not part of the factory layoff, they’re not affected by the credit freeze or failing mortgages,” said Frank Zimring, a criminologist at University of California, Berkeley.