The U.S. is home to more than 20 percent of the world’s inmates. In a special episode looking at our criminal justice system, we’ll talk with a law school professor about why America locks up more of its citizens than any other country, we’ll hear from a criminologist about our increased use of solitary confinement, and we’ll talk with a former inmate who’s made it her life’s work to help other incarcerated women transition back to freedom.