CYA Security

Bruce Schneier has an excellent column on “Cover Your Ass” security, which is pretty much all the airline and homeland security BS.

Since 9/11, we’ve spent hundreds of billions of dollars defending ourselves from terrorist attacks. Stories about the ineffectiveness of many of these security measures are common, but less so are discussions of why they are so ineffective. In short: much of our country’s counterterrorism security spending is not designed to protect us from the terrorists, but instead to protect our public officials from criticism when another attack occurs.

Airplane security seems to forever be looking backwards. Pre-9/11, it was bombs, guns, and knives. Then it was small blades and box cutters. Richard Reid tried to blow up a plane, and suddenly we all have to take off our shoes. And after last summer’s liquid plot, we’re stuck with a series of nonsensical bans on liquids and gels.

Once you think about this in terms of CYA, it starts to make sense. The TSA wants to be sure that if there’s another airplane terrorist attack, it’s not held responsible for letting it slip through. One year ago, no one could blame the TSA for not detecting liquids. But since everything seems obvious in hindsight, it’s basic job preservation to defend against what the terrorists tried last time.

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