@Francis,
Whether or not I fly has no bearing on what I've said. The upshot of Cal's post was to relax security. I only pointed out what is obvious. That her being aggravated means very little to those who carry the can if anything goes wrong and a great deal to them.
I hope you are aware that you habitual flyers are costing us non-flyers a great deal of money and are helping to perfect systems of control which could easily be used for other purposes.
I would bring in permits to fly. Only necessary journeys in military aircraft would be allowed. Possibly you think the statement that 9/11 changed the world is just an easy phrase. It isn't. It did change the world.