Not saying its right, just giving an answer. They focused on New Orleans because;
a: they were below sea level and had the most people actually THERE during it.
b: because it was the most densely populated city affected by hurricane katrina.
c: It got hit by the eye of the storm, the most furocious part of the storm, and the wall thrashed and thrashed before weakening and moving on. (for those of you who think the eye is the calm part, it is, but the eyewall {the outer edge of the eye} is where the speeds are at.)
d: New Orleans is a very popular place, Its like new york, L.A., Miami, Everyone knows of it. So thats where theyre going to focus their media. For instance, when Ivan, Dennis, Opal, Andrew, All of these bad hurricanes that affected santa rosa county so harshly and barely affected our surrounding counties, everyone focused on pensacola (escambia county) because its what you would consider a city, not like santa rosa which is all small townish (in appearance atleast)
I know My Mom and Dad's Friends (who are firefighters) had to go over there like right after it, They said that it was horrible, you could smell all of the dead bodies and everything. I was glad I didn't go, but it is very sad. Whenever we get hurricanes here everyone leaves and theres only like 10 - 25 reported deaths. But man... they had no warning, it was supposed to go to us, but it turned to them. =\
I guess thats what ya get for praying something wont come to you, instead of praying itll get weaker. It had to go somewhere, eh? =\