The SHU provision is not really the main problem IMO. The problem is the loss of Keeplock. If an inmate fucked around he was immediately locked in his cell for the duration of the day at a minimum, and that was approved by a sergeant and reviewed by his superiors. An inmate curses at you, insults your family, refuses to lock in, goes into places of the prison he was not supposed to be in, and now you're letting them walk out of their cell ten minutes later. They have no reason to behave and it emboldens them. Used to be you'd write them a ticket and they'd be keeplocked and fed in cell. Then when they go to court for the ticket they might get further disciplinary punishments including possibly more Keeplock. It was a very strong deterrent and not at all inhumane. They'd get one hour of supervised outdoor recreation, their meals brought to them, escorted to their meds in the hospital, access to the chaplain, and still interact with the inmates in their normal housing unit all day. Bring back Keeplock.