The following is from a rightwing website, but their list of references is very similar to the list here (ours was more extensive, but has been buried and archived by now).
http://www.freedomforceinternational.org/freedomcontent.cfm?fuseaction=FEMA_Katrina&refpage=issuesIn news coverage of this tragedy, the most significant events often were buried beneath a blanket of heart-wrenching stories of personal survival, scenes of awesome destruction, reports of looting, and interviews with experts. However, the key to understanding can be found in the following list of news headlines, most of which did not make it into mainstream coverage. These reports make it clear that the government did not fail to respond in a timely fashion.
The problem was that it did respond - but in such a way as to actually hinder rescue operations. There were too many instances for this to be merely a mistake or a bureaucratic snafu. There is a clear pattern here that cannot be denied. Why this should be so will be discussed in a moment, but first, here is the amazing record.
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So what is going on here? Were agents of the federal government trying to kill American citizens? Were they trying to obtain the maximum death toll and the highest level of human suffering? It would seem that way at first, but I would like to suggest that this incredible behavior stems from something else - something equally unsettling.
The only legitimate function of government is to protect the lives, liberty, and property of its citizens. In New Orleans, however, it was clear that the primary job of the military, FEMA, and Homeland Security was, not to protect citizens, but to protect the government and keep it functioning. It can be argued that, if government does not protect itself first, it may not be able to protect its citizens, so that should be its first obligation. However, the government was not in danger in New Orleans. Aside from one or two snipers, its forces were never under attack, and its ability to function was never threatened; so the self-preservation argument is not valid in this case.
It was clear from the start that the goal of FEMA and Homeland Security was, not to rescue people, but to control them. Their directive was to relocate families and businesses, confiscate property, commandeer goods, direct labor and services, and establish martial law. This is what they have been trained to do.
The reason they failed to carry out an effective rescue operation is that this was not their primary mission, and the reason they blocked others from doing so is that any operations not controlled by the central authority are contrary to their directives. Their objective was to bring the entire area under the control of the federal government - and this they succeeded in doing very well.