Wherein I agree with Megan McArdle

National Opt-Out Day - Megan McArdle - Business - The Atlantic: "Maybe there's some compelling security advantage I don't know about, but most of the security experts I read have been pretty silent about what these benefits might be. Meanwhile, we're putting more effort into screening airplane passengers (and pilots!!!) than cargo. Is that because it makes us safer? Or because it's easier, and more visible? I would be more sanguine about all this nonsense if it didn't seem like we're the proverbial drunk searching for the keys under the streetlight not because that's where they were dropped, but because the light's better."