Why have a "Katrina Commission" and not a Congressional investigation?
OH, there will be a Congressional investigation, just like there was for 9/11....
BUT, you can bet that people like Jesse Jackson, Al Sharpton and others will INSIST on a 9/11 type commission, because they will charge that there will too much CYA in a congressional one or something.
I may be wrong, I am a lot of times...but I really think someone will call for a "independent" Commission.