(Later -- Or was it? Check out the last link.)
WILLisms nails it. There was plenty of pork in the larder. If you're looking for explanations, keep looking.
...to those arguing that Louisiana just needed more funding, you all just need to shut your pieholes. Just shut your yappers and keep them that way. You should be ashamed of yourself. There are likely thousands of projects, all over the country today, that are "underfunded." In the event of a future terrorist attack or natural disaster in any number of locations around the country, the recrimination squads will rampage through and immediately declare that a lack of funding (or a "cut" in funding, which is often just a freeze or slowdown in the rate of growth) caused the disaster, or made it worse.
And these jerks, so predictable, will be wrong yet again. But their erroneous meme will have settled in to the national consciousness before sufficient facts are gathered to repudiate the nonsense.
It should be noted that there has been a comprehensive vision for the Gulf Coast that can be expected to avert future catastrophes such as this most recent. The History Channel has already put together a documentary about the events of the last week which I happened to come across tonight (September 12). Coast 2050 is the proposal. Smart, responsible people have done their homework already. As usual, the real block *is* m-o-n-e-y.
Perhaps next time it will get a bit more -- mm, what's that word -- traction.
Do a Google search for "Coast 2050" and you will see a spate of references.