The lack of help is caused by either the disaster is so large even the US is having problems or they are not doing a good job.
An almost confirmation of deaths tolls in New Orleans.
On September 1 Louisiana Governor Kathleen Blanco reported that she learned from emergency responders that the death toll would indeed be "in the thousands"
The death toll is from 353-1253. This makes it the worst Hurricane since the FL (Lake Okeechobee) Hurricane in 1928 that killed 1836 people.