It's both fascinating and disgusting to see those on the Christian right (see my post below this one), and the far-left use the tragedy of Hurricane Katrina to push their own agendas while blaming their opponents for a natural disaster.
Yesterday, I read a piece from uber-environmentalist Robert Kennedy, Jr., which essentially blames Mississippi Governor Haley Barbour for increased global warming due to his opposition to the Kyoto Protocol.
Even if we accept human activity related global warming as a fact, it is uncertain whether it would be causing an increase in the number and intensity of hurricanes. An article in the NY Times disputes this theory, and claims that we in the active part of a natural cycle of hurricane activity.
This excellent column by James K. Glassman at Tech Central Station has more.