Josh does a nice short and sweet summary of what's available on-line.
Atrios has a string of posts up today pointing to a common global explanation of what happened last week, a failure not of resources and capacity but coordination and executive leadership.
An article in the Post suggests the US military was ready to begin emergency food drops into New Orleans much earlier in the week. But they were waiting on a request from FEMA.
Lousiana Gov. Blanco accepted an offer of state National Guard troops from New Mexico Gov. Bill Richardson on Sunday, just before the storm hit. But the paperwork from Washington, allowing the troops to deploy, didn't come until Thursday.