Insanity: Repeating the same behavior and expecting different results

From the New York Times, we have Mayor Naggin cheerleading the return to New Orleans; Ignoring Risks, Some Head Back to New Orleans Neighborhood:

NEW ORLEANS, Sept. 19 - A trickle of residents returned to a New Orleans neighborhood today under a plan by the mayor to begin reopening areas of the city, despite the reservations of the top official in charge of the federal response to the Hurricane Katrina recovery efforts.

The official, Vice Adm. Thad W. Allen of the Coast Guard, has urged a delay to the plan put in motion by Mayor C. Ray Nagin that is bringing people back to a city largely without power, clean drinking water or a working 911 system, but he has stopped short of saying that the government would try to halt it.

Why is Naggin being handled with kid-gloves? He just screwed up the evacuation of his city (a city in which corruption was rampant and contributed to the loss of lives) and he's still around giving orders to 'come on back y'all, were open for business'.

New Orleans doesn't even have a new evacuation plan yet! Where's Governor Blanco on bringing some sanity into the situation?