Bruce Schneier’s new Crypto-Gram has a terrific, commonsense analysis of the new airport security measures, and why they’re uniformly pointless.

…[W]hat is the threat, and how does turning an airplane into a kindergarten classroom reduce the threat? If the threat is hijacking, then the countermeasure doesn’t protect against all the myriad of ways people can subdue the pilot and crew. Hasn’t anyone heard of karate? Or broken bottles? Think about hiding small blades inside luggage. Or composite knives that don’t show up on metal detectors.

…The real point of photo ID requirements is to prevent people from reselling tickets. Nonrefundable tickets used to be regularly advertised in the newspaper classifieds. Ads would read something like “Round trip, Boston to Chicago, 11/22 – 11/30, female, $50.” Since the airlines didn’t check ID but could notice gender, any female could buy the ticket and fly the route. Now this doesn’t work. The airlines love this; they solved a problem of theirs, and got to blame the solution on FAA security requirement

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