This is an interesting article on the Caging of America that we recommend:

New York Times Article

A Critic at Large
The Caging of America
Why do we lock up so many people?
by Adam Gopnic

January 30, 2012

http://www.newyorker.com/arts/critics/atlarge/2012/01/30/120130crat_atlarge_gopnik?currentPage=all