Millions of Americans who got on a plane over the Thanksgiving holiday heard the admonition: "Please power down your electronic devices for takeoff."
And absolutely everyone obeyed. I know they did because no planes fell from the sky. No planes had to make an emergency landing because the avionics went haywire. No planes headed for Miami ended up in Anchorage. We were all made safe because we all turned off all our Kindles, iPads, iPhones, BlackBerrys and laptops, just as the Federal Aviation Administration told us to. Realistically speaking, I'm going to bet that a handful of people on each flight could not be bothered, or forgot to comply.