I am going to enrage some people, but I am an adept of the so called "résistance passive". I take extra time while passing through security checks, I never prepare anything ahead of time and I actually enjoy people grumbling because they have to wait, especially if they are Americans (I am one too, by the way)
I have been traveling for over thirty years, I am going regularily through security checks since 1973 and I am all for security checks but I have had to put up with enough silly constraints (ban of nail scissors, nail files and now cigarette lighters) forced by stupidly paranoid American lawmakers.
Enough of the non-sense. As letters of protests are not working, I just hope that my type of resistance will aggravate people sufficiently until an avalanche of complaints will ensue. I am even looking forward to the times when air traffic will reach pre 9/11 levels. I will enjoy seeing people checking in at 7 AM for a flight at 3PM, thanks to security checks.
There is a thing called time management: I organize myself so as to be able to allow ample time for delays. But I will continue to take my time.