Yes, I am familiar with that argument that some people present. Nothing to hide? Nothing to worry about. I used to be one of those people. And I know your remark was tongue in cheek.
I was one hundred percent in favor of random drug testing until the day I had to pee in a cup while someone was watching in order to get a teaching job. I've never used an illegal drug in my life, and there I was performing what is in our culture one of the most private of acts while someone watched to make sure I didn't cheat. I felt embarrassed and humiliated. That event had a powerful effect on me. I understand now that some testing can be done with hair. That sounds much less invasive and much more palatable, and I hope that technology continues to improve to the point where it can be used in every industry where drug testing is prudent and necesssary.
I have been a conscientious objector with the airport security procedures. I haven't really supported them, but I have cooperated completely. I wasn't in support of the "opt-out" day a few months back. And I was fine throughout the pat down last night until the young man said, "You're free to go." The way I understand it, if I have given no reasonable cause and I am not accused of any crime, I was always free to go. So that troubled me. I hope that it was nothing more than a unfortunate choice of words on his part, and not indicative of something systemic.