I have a really quick question for Professor Parkes.
In one of the reports you put out a few years ago on solitary confinement, prisoner litigation, etc., you stated that out of approximately 8,300 prisoners who had two-year sentences or greater, almost 5,000 were put into administrative segregation. When you were doing that study, was there an indicator as to why that happened to so many? That's well over half. I wonder if you saw a pattern.