Shortly after that Nigerian nitwit tried to blow up a U.S. airliner on Christmas Day, I was listening to a talk radio program discussing the federal government’s response and all the new security procedures airline passengers will inevitably be asked to endure: more questioning at the security checkpoint, less freedom of movement on the plane, full-body frisks, millimeter-wave scans peering under your clothes. The host of the program asked her guests, “Will citizens of the United States really put up with procedures so invasive?”

One of the guests immediately responded: “The public doesn’t really care much if the procedures are invasive. ...