Frank LeFever wrote: > Admittedly the jury is still out as to "harm" in any crude or > immediate sense. Confounding of occupational exposure with > demographic variables or other environmental variables are difficult > to disentangle. Unfortunately, you are right. The jury is still out on RF exposure. The problem I see with cell phones is the inverse square law, since the phone's antenna is right up next to your skull. This causes a very high power density in a localized space, as opposed to more general exposures to RF (like from transmitters and radar stations) which we know a lot more about. The other problem is that people talk for hours on the things. SOMETHING is causing a huge increase in brain tumors in the last couple of years. It might not be cell phones. The environment is pretty bad, and of course there are millions of other variables. I don't know, and I don't want to find out, so I'll be wearing the cell phone on my belt with a headset from now on. Maybe I'll look like an air traffic controller, or just get cancer somewhere else, but I'll cut the RF in my head by millions. -hugh