The problem with your argument - even though it is correct and I agree with it, RampDog, is by their vey nature, the security agencies are always playing catchup.
A pilot can't take a leathman through security, yet walk around to the GA gate and he's able to waltz through with a chainsaw. There is no consistency, nor common sense, among the various outfits.
Many moons ago we took a pair of Hercs to Hobart and the security muppet wouldn't let us onto the tarmac the next day. Why? Because "you don't have a Hobart airport ID card, sir". Riiiggghhhttttt.....
All the various agencies are doing is making sure the next time something is attacked, it won't be an aeroplane. Really, who is going to go through the risk of getting sprung at airport security, when, with a pair of suicide bombers and a suitcase of bang each, you can effectively kill a thousand people by detonating them at either end of a Sydney train in the underground?
All they are doing is moving the target location. They're not increasing safety by doing so.