The director of a cancer research center in Pittsburgh issued a surprising warning to his staff yesterday, advising them to avoid using cell phones as much as possible, because of the possible risk of brain cancer. The memo was promptly leaked to the media, igniting a firestorm of debate over whether the ubiquitous devices are dangerous. The claim from the Pittsburgh researcher, Ronald Herberman, was particularly unexpected because numerous academic studies have found no connection between cell phone use and the risk of brain tumors. But Herberman says he's
basing his alarm on early unpublished data. He says it takes too long to get answers from science and he believes people should take action now — especially when it comes to children. "Really at the heart of my concern is that we shouldn't wait for a definitive study to come out, but err on the side of being safe rather ...
