As we discussed before, it's a mistake to call Opt-Out Day a failure because so few opted out of being scanned. (Jacob Sullum claims that it "fizzled"; the Hit & Run commenters correct him.) I have to consider it a success because the protest encouraged the TSA to informally modify their policies to reduce the number of scans taking place by turning off the machines. This doesn't appear to be because of the fear that the lines would be unmanageable on Thanksgiving Wednesday. This weekend I flew roundtrip DCA to LAS and back, and at both airports, despite manageable lines, none of the security checkpoints had scanners operating. There was no line Tuesday morning at LAS, but the scanner was roped off.
Jonathan Adler asks whether the TSA backed down and compiles other evidence of scanners being shut down.