I've been thinking the same thing. The Superdome seemed to be the last place I would want to go. And from what I've read - that as of 5 pm yesterday there had been no announcements made inside, you're in a huge crowd in a tight space, my pets would be outside, etc. - it just sounds like a nightmare. And I'd have no personal defense available, either.
Heard that sporting goods stores were being looted for ammunition.