[DonQ]

There had been a suggestion in a newspaper that helicopters might have rescued some people from the roof of the WTC, but that suggestion is too facile and forgets that a roof rescue would have been confronted with literally hundreds of panicy people, who could fill dozens of copters. I doubt enough copters could have been mobilized, particularly since a safe landing zone for all of them might not be available in that sort of crisis. Moreover, copter piloting with the updrafts of the fire would have been extremely risky and would have include the very real risk of a copter crashing into the same or a nearby building and thereby adding to the devastation.

[Nov3]

You are right the proper thing to do was to leave them to die.