Solitary confinement has been used extensively, it always has. I was in prison for 44 years; it was a normal part of life - the practice of it. They put you in solitary confinement for disciplinary reasons, they put you in solitary confinement to protect you from violence or whatever, and they also put you in solitary confinement just to show you who has got the power ... It's not something new; it's just something that nobody really cared about in the past.