I've heard it summarized thusly: The aircraft is most likely to hit something during takeoff and landing. Cell phones, laptops, and other hard, dense, chunks o

I've heard it summarized thusly: The aircraft is most likely to hit something during takeoff and landing. Cell phones, laptops, and other hard, dense, chunks of metal plastic are, in fact, dangerous when they're flying toward your head. It doesn't particularly matter whether they pose an electronic threat, policy would be the same.