The F.A.A. prohibits the use of electronic devices (mobile phones, laptops, tablets, etc) on flights without there being any actual evidence showing that the signals emitted by the devices constitute any threat to the aircraft.
The F.A.A. should be required to provide clear and compelling evidence of danger WITHIN SIX MONTHS.
Failing this, the F.A.A. should be forced to lift all prohibitions of use of electronic devices during all stages of flight.