Detailed text transcripts for TV channel - CNN - 20110521:05:39:00
That number is not constant. if you have a bad signal, if you're overseas and having a difficult time hearing somebody, you're getting more radiation at that time. >> what sit about the microwave radiation that can potentially cause problems? >> ionizing radiation is one end of the spectrum. that's x-rays. nonionizing is more like a low-powered microwave oven. the question is, at low powers, could this be causing tissue to heat up and causing damage that way? we know for the first time this year, from a study at the nih, that cell phones change the way the brain metabolizes. so the question is...