The loss of freedom and the public panic that follows in it's wake is what a terrorist act is all about. Take it seriously.
Thats a fairly defeatest post from you
Guppy 
I think public perception on how to deal with terrorism may very well be changing to a more considered approch because of one
big lesson...
IRAQ
Personaly I dont see why aviation has to wear every miss-guided and/or ill-advised polititions ideas about where the next terror threat will come from. It can come from anywhere, and probably be just as dramatic, if not more-so, then anything that can be done with an aircraft.
Remember Anthrax via mail... post 9-elleven, I recall people being
far more concerned about what was arriving in their own mail then the posibility that an aircraft will fly into their building - 99.9% of people DONT work in tall buildings.
It is unforetunate that as a pilot I have to piont out alternate possibilities (petrol at the night club scenario) to counter these 'seen to be doing something' reports (or is that 'inflating their own self importance' reports) that
focus on aviation as THE threat.