Don't forget Mayor Nagin, either
MR. RUSSERT: What’s the biggest mistake you made?(Emphasis mine.)
MAYOR NAGIN: My biggest mistake is having a fundamental assumption that in the state of Louisiana, with an $18 billion budget, in the country of the United States that can move whole fleets of aircraft carriers across the globe in 24 hours, that my fundamental assumption was get as many people to safety as possible, and that the cavalry would be coming within two to three days, and they didn’t come.
Why a non-reason, you ask? Because you don't need a reason for submitting the petition.