Disruptions: Fliers Must Turn Off Devices, but It's Not Clear WhyMillions 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
