1) They’ll all need public assistance, strung out across NO.
2) They’ll all be dumping their urine and crap in the streets.
3) Looters will be able to blend in, forcing more 24 hour guards at every facility.
Every neighborhood in New Orleans needs a total clean out, an only opened when infrastructure is restored and condemned buildings have been identified. Completed neighborhoods would then need 24 hour perimeter security to help keep looters from transiting to others.
No more PC BS, and that includes right wing PC of those who think they have a right to traverse all around a condemned city because they have a deed to property there somewhere. They'd just be getting in the way of disaster restoration.
They need to raze, raise, and rebuild many areas. They really need to be thinking about dredging the canals to LOWER them and using the muck to RAISE parts of the city.
The Dutch are CONSTAANTLY dredging and filling to keep their land above water, NO should be doing the same.
It won't protect against a 25 foot storm surge, face it, not much of anything will, but it sure would help against smaller storms, and lessen the damage from a big mamma-jamma.