Prior to 9/11 you would never have found a case of an airplane being hijacked with a box cutter. And prior to 9/11 they were perfectly legal to bring on board. Maybe they did tape them to the undersides of the seats, though we don't know that for sure. What we do know is that they didn't have to sneak them on board if they didn't want to because they were not prohibited from being brought on board. I could have walked on with a small hunting knife and not been looked at twice.
Perhaps profiling people is the way to go but so far, domestically, we don't do that. In fact, they don't do that in any European country on a domestic flight either. One doesn't need a passport to travel from Manchester, UK to Leeds, UK. Or from Lyon, France to Paris, France. I guarantee you though, that when the government starts requiring a passport for domestic travel the same people complaining now will be complaining then. A bunch of armchair athletes. Everyone has it all figured out, somehow, but those in charge. I don't agree with everything the government does, nor do I agree that all the current security measures are adequate or appropriate. I do think that given all of the circumstances I certainly couldn't do any better. And I don't think any one of you could either. If you all are experienced travelers then you all know that anything that could be considered a cutting device is prohibited, don't bring it. What do you need a corkscrew in your carry-on for anyway? Check it in.