Detailed text transcripts for TV channel - CNN - 20110531:15:31:00
According to industry figures. >> environmental factors take decades to see their effect, not a few years. >> reporter: so if it may take decades to get a clearer answer, what can we say about cell phone safety now? scientists here in san jose, california, are trying to answer that very question. >> so one of the things we have to do first is literally put the drain inside the head. >> exactly. so it's very light now. >> reporter: the fcc requires all cell phones emit below 1.6 watts per kilogram of radiation. >> let's put some brain to it. >> reporter: in order to test for that, scientists he...