In the film I watched Sunday, they made some comment about "letting the airlines go broke" if you couldn't travel without proper ID (the soon to be rolled out National ID card) when the time comes. Well, I can do you one better.
I haven't flown since 9/11/2001, because the wife refuses to take me with her when she flies. Apparently she objects to my choice of flight apparel. What is that apparel, you might ask? Flip-flops, hand cuffs, and paper scrubs stenciled "Federal Airline Prisoner"... and nothing else.
I have carried a pocket knife, nail clippers and whatever else I felt was needed, every day of my life, pretty much since the day I first put on pants. I'm not about to give up my essentials just because some jack-booted thug tells me I "can't carry that in here".
...At least not without some sort of a show, anyway.
When I've said this to people in the past, they generally mouth some words to the effect that "they're only trying to make the airlines safer". Let me tell you how to make the airlines safer. The attendant who greets you at the door of the plane asks you a simple question "are you carrying a weapon?" If you answer no, she hands you one to carry (loaded with the proper rounds, of course) for the length of the flight.
...Do you honestly think there will ever be a hijacking under those circumstances? Didn't think so.