WHY turning off all electronic devices on planes doesn't make any sense:

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.

According to the F.A.A., 712 million passengers flew within the United States in 2010. Let’s assume that just 1 percent of those passengers — about two people per Boeing 737, a conservative number — left a cellphone, e-reader or laptop turned on during takeoff or landing. That would mean seven million people on 11 million flights endangered the lives of their fellow passengers.

Yet, in 2010, no crashes were attributed to people using technology on a plane. None were in 2009. Or 2008, 2007 and so on. You get the point.

Surely if electronic gadgets could bring down an airplane, you can be sure that the Department of Homeland Security and the Transportation Security Administration, which has a consuming fear of 3.5 ounces of hand lotion and gel shoe inserts, wouldn’t allow passengers to board a plane with an iPad or Kindle, for fear that they would be used by terrorists.