It becomes clearer by the day that the local and state governments in Louisianna are mainly responsible for the delayed help in the aftermath of Katrina.
The Red Cross is confirming that it had prepositioned water, food, blankets and hygiene products for delivery to the Superdome and the Convention Center in the immediate aftermath of the hurricane, but were blocked from delivering those supplies by orders of the Louisiana state government, which did not want to attract people to the Superdome and/or Convention Center.
(
http://www.redcross.org/faq/0,1096,0_682_4524,00.html).
Furthermore, as I type this the Mayor of New Orleans and the Governor of Louisianna are revealing their ongoing confusion by publicly disagreeing over the mandatory evacuation of New Orleans. The Mayor has ordered it and the Governor is saying he can't do it without her permission.