This California Prison Teaches Inmates to Dive Deep

At the California Institution for Men, a state prison in Chino, there’s a program that trains inmates to dive deep. Here, at the on-site Marine Technology Training Center, students study commercial diving both underwater and in the classroom. Founded in 1970, the 18-month course has graduated hundreds of men—many of whom have gone on to jobs on oil rigs and ships and only 6 percent of whom have returned to prison.