This Junk Won't Fly The idiocy of airport-scanner "Opt-Out Day." By William Saletan Should you opt out of an airport body scan?In case you haven't heard, there's a big holiday coming up. No, I don't mean Thanksgiving. I mean the day before it. Wednesday is the busiest air travel day of the year, and a horde of paranoid zealots—techno-libertarians, Tea Partiers, rabble-rousers, Internet activists, and congressional demagogues—has decided to make it even worse. They're calling it "National Opt-Out Day."