Amazing observation, I wonder if anyone actually thought that these terrorist cowards cared about federal speed limits below 10,000 ft. For that matter I'm sure the speed limit is even lower in the city..
Were these studies even needed. A speeding jumbo jet, full of highly flammable fuel crashed into a very tall structure. The structure collaspes. Killing 1000's of innocent victims.
No need to waste taxpayer money on dueling studies.
Now you don't want them going too slow and falling out of the sky!;-)
Seriously, here around NYC I think they want them in and out as fast as possible. Tommorow afternoon when the winds pick-up and shift from the south to the west, I will be right it the flightline for Newark landings. They have no time to putter along going in and out about every 90 seconds.