Oh, right.............like the bad guys haven't already thought of that one
without reading Pprune.
Running round in circles, clucking loudly and repeating "The sky is falling, the sky is falling" does not, in my view, constitute an effective response to the threat of terrorism.
A threat which, I might add, we in the UK have faced on a daily basis since the 1970s and not just since September 2001.
In this situation, paranoia is every bit as dangerous as complacency.