Originally Posted by GUWonder
Even as El Al does it, it couldn't be done and sustained in the US for any time and have meaningful effectiveness (without having substantial longer-term counterproductive impact).
Agreed. El Al has very few airports to watch over compared to the US. Besides, psychological screening is a very complicated subject and requires extensive experience and training. Also consider the passenger volume. El Al runs a flight or two a day out of their non Israeli airports. That is not TOO hard to cover. Try an all day affair at how many airports?