To which I would only respond:

1. Modern airliners should be more than adequately shielded against spurious signals from hand-held-devices. If you can use your laptop at 35,000 feet, there&#039;s no reason you shouldn&#039;t be able to use it at 9,000 feet.

2. I once used my Sony ICF7600 portable receiver (with headphones) on a cross-country flight. The number of AM and FM signals bouncing through the plane were staggering. And I didn&#039;t even try for short wave or long wave. In reality, we are being bombarded by signals of various strengths and frequencies all the time. Turn on an AM radio at night and scan between the local stations, and you&#039;ll see what I mean. HAM radio operators know this, the FCC knows this, and airline design engineers know this. 

3. It wasn&#039;t cell phone signals that brought down United Flight 93 on 9/11.