"The number of American adults is about 230 million, meaning that one in every 99.1 adults is behind bars.
Incarceration rates are even higher for some groups. One in 36 adult Hispanic men is behind bars, based on Justice Department figures for 2006. One in 15 adult black men is, too, as is one in nine black men ages 20 to 34."
With 1.6 million people in prison, the incarceration rate is now the highest in American history, a new report says.
