I've been through it several times in the past several months (for domestic USA flights), but haven't been through the "nude" scanner yet. I don't care if they want to do that, but I know that it's a sensitive issue for many people. You wait in line, take your shoes off (and smell other peoples' feet ), and being an Aspie, we're much more likely to be tagged as nervous and suspicious; meaning that we will often face an additional battery of weird questions. Otherwise, not a big deal, as long as you have all your papers in order (ticket, boarding pass, letter from doctor if you have meds on you, drivers license or ID, and passport if you're going outside the US). Also you need to be prepared to answer questions about why you're going to wherever is your destination, and to answer questions about where you live (the weather yesterday, who's the mayor of your city, etc). That's how they try to catch you in a lie. If you say you're from a certain city and you don't know whether it was snowing yesterday, or who the mayor is, you might be a terrorist lying about where you live.
I do hate the feeling of loss of freedom and even imprisonment to some degree, which is part of air travel. Once you cross through that checkpoint, you're basically US Government property, and you no longer have your constitutional rights! Knowing and accepting that is important to prevent panic, I guess. I'm not afraid of bombings or terrorists, and personally I think the whole TSA thing is a public ruse to get tax money and to make the people think (falsely) that they're protected.
My answer to airplane security: ALLOW ALL licensed gun owners to carry loaded onto planes. I personally guarantee that nobody will try anything! You think that an Arab with a box cutter is any match for a Texan with a Colt .45?
Charles