> One more note. Every day there are millions of passenger miles flown on airlines. Surely the law of large numbers says that we're already performing an experi

> One more note. Every day there are millions of passenger miles flown on airlines. Surely the law of large numbers says that we're already performing an experiment on electronic device radiation and the cockpit. I couldn't agree with this more. At one point, I was flying very frequently for work, and I used to make a hobby out of watching to see what people did with their electronics when prepping for take-off. Laptops usually got turned off, but rarely did I see someone turn their phone off completely. I'd see a lot of people switch to airplane mode, then put their phone to sleep (a short press on a button). I'd even see a lot of people who simply put their phones on silent (usually when I'm sitting next to them; this is difficult to observe from a distance). Behavior on landing is pretty telling as well. When you see people texting and making calls immediately after landing, you know that their phones weren't off completely. When you watch the person next to you take out their phone and begin texting immediately, you know that the phone wasn't even put in to airplane mode. These scenarios were far more common than observing someone actually power down/up a device. I'd imagine that it is possible to get an estimate of the number of RF emitting devices within range. I really wish the FAA would do a study of what actually happens on planes, rather than what the rules say should happen on planes, because I suspect the results will be much different than they expect.