I'm not sure how much credibility New Orleans Mayor Nagin really has left, but this somber bit in the Washington Post story stuck out to me:
In New Orleans, Mayor C. Ray Nagin (D) was visibly shocked when shown the recording by reporters.
It "seems they were aware of everything . . . that we would need lots of help," Nagin said after a post-Mardi Gras news conference. "Why was the response so slow?"
When the video ended, Nagin turned away and said, "Oh, God."