And volunteering for the system ahead of time will make it so much simpler for the government when the DNA/ID card database comes into effect......... 
Well, there is, in my opinion, a big difference giving that sort of stuff up voluntarily on your terms, versus their terms!
I remember standing in Queue in Amsterdam one time, enviously staring at the non-queue over at the IRIS station and wanting very much to sign up. Not sure why I didn't. Now I have to deal with US Airlines and the strip searching we do here. They piloted a biometric solution in Orlando, FL, but now they are having a hard time adopting it. At least 5 major US airports have said "no way" and I remember the quote of one idiot who is the head of operations for one of the them that said "I really don't see value in it for the frequent travelers." He based this on the fact that the TSA, once you have passed the biometric screening, won't say how they are going to adjust the rest of the process and in fact may make you go through the normal screening process anyways.
My opinion is still that if it weeds people out of the queue that aren't frequent travelers, it will still be quicker because then only people who do this on the regular basis will be in the biometric queue. Alas stupidity and illogic prevail in the good ole US of A.
