It's a hard call to make a decision to put your friends in prison.

Initially I was kind of shocked and bewildered, and I didn't know what to do.

a large number of pictures involving prisoners and poses with prisoners.

I was concerned it was going to start again,

It violated everything I personally believed in and everything I had been taught about war. It was more of a moral call than anything,

He was troubled by it. He didn't know what to do. It shocked his conscience, basically.