There's a lot more evidence for rehabilitation than there is for mass incarceration with brutal staff. There are of course some people who are so dangerous, so

There's a lot more evidence for rehabilitation than there is for mass incarceration with brutal staff. There are of course some people who are so dangerous, so relentlessly violent, that they can never be released from prison. Does that mean we should be brutal to those people for all the years they're in prison? Why? What's that going to achieve? It doesn't stop them being violent, and it may well escalate their dangerous harmful behaviour in prison.