In the United States, there are more than 2 million people behind bars. That’s more than anywhere else in the world. 90% of prisoners serve time in one of the 1,700 State penitentiaries. One of them, the Anamosa State Penitentiary, granted us exceptional, round-the-clock access. Here, three quarters of the prisoners have been convicted of violent crimes and serve an average of 27 years. How is the prison managed?
