"How about that they can't live further than less than 500 feet from a prison warden's office?"
I'm in favor of that too... much better idea than the one proposed.
I live near the State of Michigan's Big House. I once talked with the psychologist in charge of group therapy for sex offenders. In a thick accent, he said, "There are many people who should never be allowed out of prison."
I think one of the problems the left has on this issue is that it requires them to admit that there are sexual practices that are always wrong.