9:30 AM - MAYOR NAGIN ISSUES FIRST EVER
MANDATORY EVACUATION OF NEW ORLEANS: "We're
facing the storm most of us have feared," said
Nagin. "This is going to be an unprecedented
event." [Times-Picayune]

His responsibility did not end with issuing the evacuation. According to the NO Comprehensive Emergency plan, it was the city's responsibility to execute the evacuation -- including using everything at the city's disposal to do so. They didn't.