"Pete" wrote

Really. So what should have been done differently?

New York should have AAA and SAM batteries, like most third world
countries. There should be no way an airplane can enter New York City
at high speed that isn't identified. Any aircraft at the speeds given, at such
a low altitude should be splashed before they enter a center of commerce.

I would have NYC ringed by Patriot batteries, and anything above 250 knots
that isn't on a flight plan should be terminated. Error on the side of those on the
ground.