Best airport in the world is Singapore. Their security consists of a metal detector like arch to get into the numerous hubs where planes park and embark/disembark. Plus they have random security people walking around with wands and are not bashful about profiling the usual suspects.
If someone started squawking about their civil rights not to be profiled, they would probably just get additional security measures as an object lesson.
We timed it perfectly. Apparently, the place was packed and the lines were long in the morning. We were there around 3:30 pm and zipped right through.
I didn't know about this event till Saturday morning, but if I had, I could have pre-registered online. Apparently, that way you could print your pass and just proceed to security without that first step of stopping to get your pass. Unfortunately, by the time my friend and I decided to go, the pre-registration was closed.