edit: also, you just fed yourself my point exactly . Obviously, its working if 50 years of it not happening.
...none
that we know of, dipshit. I don't know of any confirmed incidents where the TSA has actually prevented a terrorist from boarding, do you? And besides that, there are any number of anecdotal evidences of people boarding with any manner of shit, including knives, guns, and drugs, and were only discovered after getting off the plane.
