There are more than 2.1 million US citizens in jail – more than in any other country, the Bureau of Justice Statistics says.
US: 726 people per 100,000
UK: 142
China: 118
France: 91
Japan: 58
Nigeria: 31
12.6% of black males in their late 20s are in prison, compared to 3.6% of Hispanics and about 1.7% of whites.
All this while the crime rate in the U.S. has been dropping.