Nightmare At Twenty-Thousand Feet

If the electronics in a commercial airplane are so poorly shielded that emissions from the passenger compartment can down the plane, then the designers are grossly negligent and all the searching of passengers is a waste.
Three terrorists could turn on their phones, and the plane goes down.

Salon's 'Ask The Pilot' column is quite entertaining.

Here's a potentially patronising link from one of the columns:
http://www.howstuffworks.com/question230.htm


It's probably about as dangerous as turning the courtesy lights on inside a car at night. An unnecessary impairment/interference rather than an "Oh my god, the altimeter's been wrong for over 30 min..." event.

That said, the human species has no shortage of Hindenberg passengers who believe "no smoking" signs are frivolous.