"It does help prisoners turn their backs on a life of crime." A watchtower seen through barbed wire at the Estelle Unit - one of two super maximum security prisons in the state of Texas [BBC/Lee ...

"England." "Hope you enjoy Estelle," he says. "Do you?" I ask. "A lot better than where I was before." Welcome to the Estelle Supermax Penitentiary in Huntsville, Texas. Concrete watchtowers ...