I disagree with this. Both relieve tensions in a highly volitile setting. There is always an undercurrent of violence in a prison. Vices like these won't take that undercurrent away, but they may lessen it a bit.
I am against taxpayer funded porn and smokes. But if an inmate works a job at 20 cents an hour and pays for his own porn and smokes, than I say let him have it.
And weightlifting?
Porn will lead to more violence. Now and later. Ya' know...unreleased frustration and all that stuff? Just like it does in society.
Glad you aren't a psychiatrist..LOL.
Take it all away.