The above posts show have far a once free country and people have sunken.
On the contrary, I think the above posts show how little people understand about aviation security these days.
All of TSA's policies are contained on that agency's website, and are easy to understand. I fly quite a bit -- not as much as a business traveler, but more than most other folks I know -- and I have never had a problem at a checkpoint. Then again, I follow TSA's rules, and I am friendly and polite to TSA officers, rather than snide and condescending.
Let me cite two recent situations...
When I fly, if I have a checked bag, I put my Leatherman Wave and my Buck folding knife in that bag, since I know they can't go through the checkpoint. But I do carry with me a small keychain Swiss Army knife that I modified by cutting the blade off, leaving only the nail file/screwdriver and scissors, and with it I have a Leatherman Style PS, a small tool that also has no knife blade.
A couple of months ago, I took a short trip to southwestern Florida to visit old friends. At the airports in Baltimore and Fort Myers, I divested those little pocket tools, put them in plain sight in a bin, and waited patiently while the TSA officers did their jobs and inspected them. No problem. The TSA people were professional and courteous, as was I.
Last week I flew again. The guy in front of me had a money clip with a knife blade built into it. Knives are prohibited, there are signs and recorded announcements advising that, and that guy had to have known he was not allowed to have that blade. The TSA guy who inspected the knife told the passenger he could check the bag, mail it back to himself, take it back to his car, or surrender it to be disposed of, but it couldn't go past the checkpoint. What did the passenger do? He started yelling that this isn't America anymore, that TSA's rules are stupid, etc., etc., which got him nowhere.
Know the rules and follow them...it really is that simple.