The post from Tuesday has legs (I would love to take credit, but it was Democracy Now! that dropped the story on Monday). Glenn Greenwald at Slate has now posted on it. This current development is the direct result of the 2006 repeal (for all intents and purposes) of the Posse Comitatus Act in the Defense Authorization Act of 2006. The Bush Admin used Katrina as the pretense to push for a law that would allow military units to be deployed in the United States. If Katrina had been their real motive, it seems likely that they would have simply pushed for more funding and troop support for the National Guard.