My guess is that there is not a large enough user base of utility radios for a potentially huge class action lawsuit that would be necessary for the lawers of the world to reap handsome profits. Of course nobody will admit to such conspiracies. It just so happens that the bands where cell phones, WLAN and micro ovens work are especially harmful to humans.
Oh, and don't forget those deadly fields at the other end of the EM spectrum - 50/60 Hz from overhead power lines.
- Kirt Blattenberger
RF Cafe Progenitor & Webmaster