The Nanny Diaries: Fliers Still Must Turn Off Devices, but It's Not Clear Why

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.

New technologies are often greeted with fear and that is certainly true of a disruptive technology like cellphones. Yet rules that are decades old persist without evidence to support the idea that someone reading an e-book or playing a video game during takeoff or landing is jeopardizing safety.

Nevertheless, Les Dorr, a spokesman for the F.A.A., said the agency would rather err on the side of caution when it comes to digital devices on planes.

He cited a 2006 study by the Radio Technical Commission for Aeronautics, a nonprofit group that tests and reports on technical travel and communications issues. The group was asked by the F.A.A. to test the effects of cellphones, Wi-Fi and portable electronic devices on planes.

Its finding? “Insufficient information to support changing the policies,” Mr. Dorr said. “There was no evidence saying these devices can’t interfere with a plane, and there was no evidence saying that they can.” I’m not arguing that passengers should be allowed to make phone calls while the plane zooms up into the sky. But, why can’t I read my Kindle or iPad during takeoff and landing? E-readers and cellphones can be easily put into “Airplane Mode” which disables the device’s radio signals.

The government might be causing more unnecessary interference on planes by asking people to shut their devices down for take-off and landing and then giving them permission to restart all at the same time. According to electrical engineers, when the electronic device starts, electric current passes through every part of the gadget, including GPS, Wi-Fi, cellular radio and microprocessor.

via bits.blogs.nytimes.com