[QUOTE]Originally posted by letiole:
[b]mdtony: The solution to that, which is in place at airports in other countries (SIN comes to mind) is screening at the individual gates. That way if there is a breach it is confined to a very small area and the rest of the airport can continue to operate.

That's fine if you have gates that can be isolated. My experiences in JFK, LAX, ORD, DFW, etc. are quite the opposite. The vast majority of gates are clustered in piers. Calculate the cost of refitting all of these terminals. While I do agree with your point, the implementation of this would be years away at a minimum.