Oh, and polls showing that the majority of people in the US approve these measures mean nothing.
First, people who don't fly and don't have loved ones who do shouldn't be asked their opinion on this; they're not affected. Even people who fly once in a while and aren't at risk for skin cancer, aren't known to the TSA agents, aren't famous, aren't minors or parents of minors, etc., may find it all too easy to say, "Go ahead. Take a picture of me naked, feel me up in front of a bunch of people, whatever it takes."    But if you have a history of skin cancer and you fly a lot, going through the scanners may be against medical advice.   If you're a pilot or flight attendant who may be known by many of the TSA agents or if you're a famous person, having your naked body viewed by those people is a bigger deal than it would be for most of us.    If you're a minor, should a TSA agent be able to do things to you that would land them on the registered sex offender list and probably bring prison time if they weren't doing it in the name of "the war on terror?"   

And as long as the TSA isn't doing cavity searches, would-be suicide bombers can still smuggle enough explosive onto the plane to blow it up, even with the use of the scanners and the pat-downs. Then there's the unscreened cargo, etc.

I'd be happy to go back to the days when you could just walk through the airport -- or run, like OJ Simpson in the old commercial -- and get on a plane, carrying liquids in your carryon luggage, without having to arrive 1 to 2 hours early, take off your shoes, and be subjected to invasive physical searches.    Secure the cockpit doors, put at least one marshall on every high-capacity flight (jobs that can't be outsourced), check passengers' IDs, use some bomb-sniffing dogs, screen cargo, and do some Israel-type questioning of some adult passengers.   And then just accept the fact that nobody's really "safe" anywhere and you're at more risk on the highway or in many other places where people contract illness or are injured in accidents or by acts of violence.