This was the worst hurricane ever known, in terms of the deadly storm surge. The unique topography of New Orleans made it particularly horrific. The best laid evacuation plans were still ignored by some people, while others could not get out in time, but that does not really matter now, as carnage is still carnage.
More importantly, the tone of the post that reaised these questions is combative. I urge that we not prolong this aspect of the discussion, as I predict it will get out of hand.