Bruce Schneier: TSA Scans "Won't Catch Anybody"

Popular Mechanics:

Q: The machines have shown up in the wake of the so-called underwear bomber, who tried to blow up a plane with chemicals stored in his briefs. Would this technology have stopped him?

A:  The guys who make the machines have said, "We wouldn't have caught that."

Q: Has there been a case since 9/11 of an attempted hijacker being thwarted by airport security?

A: None that we've heard of. The TSA will say, "Oh, we're not allowed to talk about successes." That's actually bullsh*t. They talk about successes all the time. If they did catch someone, especially during the Bush years, you could be damned sure we'd know about it. And the fact that we didn't means that there weren't any. Because the threat was imaginary. It's not much of a threat.