" Our prison population, in fact, is now the biggest in the history of human civilization. There are more people in the United States either on parole or in jail today (around 6 million total) than there ever were at any time in Stalin’s gulags. For what it’s worth, there are also more black men in jail right now than there were in slavery at its peak. "

― Matt Taibbi , The Divide: American Injustice in the Age of the Wealth Gap