It surprises me that some people are surprised that Dubya didn't think Katrina was a reason to end his vacation early, or a reason to take any action at all for quite a while. After all, this is a guy who got a DWI when he was 30 years old. At twenty-two, a DWI is a stupid, stupid mistake that you learn from. At thirty, you're a full-fledged adult, and a DWI at that age is proof of a total lack of judgement, combined with complete disregard for the safety of other people.
'Nuff said, I think.