I live in the UK. Unlike the Americans present (specifically YOU), I've spent my entire life in a country that's been in a state of low-level civil war (any NORAID contributors present? Just want to say, "Gee, *thanks*, y'all"). It's only in the past few years that the IRA have stopped blowing things up.
I'll emphasise one point for you. YOU ARE NOT UNDER TERRORIST THREAT.
The horrifying events of September 11, 2001, were a one-off; never to be repeated. It is to your eternal shame that you as a nation have allowed the Bush/Rumsfeld administration to use this anomolous event to start gutting the Constitution wholesale in order that they cling to power.
Many Americans have pointed out that the UK doesn't have a written constitution (it does, it's just not in one document) and that we're poorer for it. Until the current administration started turning the USA into a one-party pigopolarchy, I'd have agreed.
When security takes nail-clippers and tweezers from you at the airport, they're not safeguarding you; they're violating your freedom.
Next, they'll take some other item, and another, and another. Then you won't be able to take any hand-luggage at all.
Then, you'll have to seek approval for your journey.
Then you won't be able to travel at all.
Yes, this is hyperbolic. I'm being dramatic to make a point, which is this:
America is becoming that which she despises.