I don't necessarily believe any of the 9/11 conspiracy theories, but at the same time they need to be given a fair hearing. Last year, Popular Mechanics offered a 9/11 debunking article that received a lot of attention. Unfortunately, it was written by Ben Chertoff. And, he might just be the cousin of one Michael Chertoff. So, I'm already predisposed to doubt PM offering a debunking of Katrina myths.
Especially since I've already read several articles that are very similar, and all of which have a vague tinge of propaganda.