Interesting.
I think it does have something to do with the constitution of the group left behind in the case of NO. Not that most of them are black - after all, 80% of the NO population is black, so this isn't surprising - but that a disproportionate number are probably criminals in any case. The police did release criminals wholesale from the jails when the flooding got bad, so perhaps there is a greater than average percentage of people who are just either very bad or very dumb to begin with.
I saw a group on tv on a section of road being watched. I thought they were just sending them to a new facility. Didn't know about the other.