from the we're-congress,-we-don't-do-empirical-evidence dept
As for the concern that it would just be really "annoying"? It turns out that when you look at actual tests (what a concept), this turns out not to be a problem. Passengers develop their own etiquette for keeping quiet and not pissing off other passengers. In other words, social pressures can handle most of the worst scenarios without the need for any sort of law that bans it in all situations. But, of course, this is Congress we're talking about. They're not huge fans of basing laws on what actually happens, but on what will generate the best headlines.
Also, just to respond to some of the misconception in the comments to the previous post: the potential ban has absolutely nothing to do with the technology issues related to using mobiles on airplanes. It's entirely about the etiquette/annoyance issue. Most of those technical issues have been worked out by putting a "picocell" on the airplane itself to redirect the voice traffic in a more efficient manner, rather than having the phones try to connect directly to towers on the ground.