Greg Palast is a non-partisan investigative reporter who has uncovered many scandals by the corrupt and powerful.
In this documentary he uncovers aspects about the flooding of New Orleans which speak not well of the people that were in charge.
This week you can download the documentary for free, although I understand that Greg Palast would apreceate a donation. For some reason he doesn't have many corporate sponsors.
Download here: http://www.gregpalast.com/bigeasy/
A related topic: The webcomic "After the Deluge" tells the authentic story of some people who suffered through the storm, the flooding and the aftermath. Recommended.
View it here: http://www.smithmag.net/afterthedeluge/2007/01/01/prologue-1/