How safe are cell phones?

September 14, 2009 9:34:52 AM PDT
Senate hearings begin this afternoon on cell phones. Lawmakers want to know if the radiation they emit causes cancer All cell phones emit radiation, but some much more than others, according to a new study. Using any of them could be dangerous, says the Environmental Working Group that sponsored the study. The watchdog group warns that using a cell phone for 10 years or more significantly increases a person's risk for certain types of brain cancer.

The food and Drug Administration has found no link between cell phones and cancer.

Phone manufacturers say their phones meet strict federal guidelines.