I think the difference is the human element. People in Iowa can evacuate.
And nobody could drive the hundreds of busses in New Orleans?
Of course not. They were wholly surrounded by flooded areas.
Not prior to the flooding they weren't. The buses could have been used to evacuate people before the flooding. There's a novel idea. You act as though Nagin was victimized... like Hell. Nagin sat on his ass, did nothing, and blamed the federal government for his failures. Why didn't he take charge of the situation? Mayors are supposed to do that kind of thing. This is what happens when people sit aroudn and expect the federal government to do everything for them.
The notion that a mayor's office might be equipped to handle Katrina is right up there with the notion that the Earth was created 5000 years ago.
That doesn't of course mean Nagin did
well. It's just that, unlike with Blanco or the feds, it's not as if random Joe Bloke off the street would have done a better job.
He tried to take charge of the situation after it became apparent that the feds weren't (for days. Not for ever) ready to do their duties. He didn't look too good at this, as was inevitable.
It should be pointed out that the evacuation operation can't have been quite as bad as everybody claims. There
could have been 10,000 deaths otherwise.