New Report Doesn't Prove Cellphones Cause Cancer

Part of a new report from a U.S. National Toxicology Program (NTP) study on the potential association between cellphone use and cancer has renewed attention to this uncertain relationship. In the study, released last week, researchers at the NTP, part of the National Institutes of Health, found that long-term exposure to high levels of this type of radiation might be linked with a small increase in the risk of brain cancer in male rats. "The implications of this for the safety of mobile phone us