Wishing I were more schooled in the circumstances of that Saturday & Sunday in N.O., what WERE the reasons for the evacuation being delayed? I mean, Nagin must have been reacting in the way he did for some reason...
Well, FWIW, among other rumors there was the story that a.) Nagin et. al. had been relying all along on that sooner eastward tack that just didn't happen, and b.) there were concerns that the hotel/motel/tourism industry would hold him accountable for major losses in the event it was a non-event and c.) the imbroglio over the mass exodus for a similar storm in the form of Ivan the previous year that resulted in huge numbers of people who, instead of being grateful for having been spared, were extremely upset that they'd evacuated for nothing.
None of which excuses a lot of action that should have been taken--but just some of what the other side claims FYI. BTW the tapes of Blanco on the morning of the 29th assuring someone (the feds?) that the levees had not been breached is what befuddles me!

A2K