WHO says cell phone use "possibly carcinogenic"
http://www.nlm.nih.gov/medlineplus/news/fullstory_112666.html
http://www.nlm.nih.gov/medlineplus/news/fullstory_112666.html
"Using a mobile phone might increase the risk of developing certain types of brain tumors and consumers should consider ways of reducing their exposure, World Health Organization (WHO) cancer experts said on Tuesday."