What you're saying is that because everything that can be tried can be rather easily circumvented, nothing should be tried at all?
No, what I'm saying is that there are effective means of increasing security, and then there are stupid rules that have no effect other than to inconvenience us or deny us our rights.
For example...
What if some highly-paid GSA bureaucrat pulled a rule out of his nether-region proclaiming that everyone entering the building had to flap their arms, bob their heads, and cluck like a chicken. It won't do a damn thing to stop terrorists, but hey, those are the rules. What do you mean you don't want to do that? What do you mean it won't increase security? Quit "yelping" and comply!
How about some suggestions for "effective" security measures designed to impede or prevent what you're yelping about?
I served as a US Naval Intelligence Officer for ten years. I have implemented unit-level terrorist countermeasures and I have provided unit-level counter-terrorist training. I have organized and conducted field operations in foreign countries. So yes, I do know something about security. If the feds wish to solicit my services as a security consultant, I'd be more than happy to assist them.
But they already have plenty of highly-paid "security experts." Hell, what are all our tax dollars paying for at the FBI, the FAA, the INS, etc.? You remember those agencies don't you? They're the ones who collectively allowed the 9-11 attacks to occur.
As for "yelping"...
Since when does standing up for our rights and a responsible government constitute "yelping"? Perhaps you're on the wrong Web site. There is plenty of "yelping" going on here.