we re not sure since the sciences out. the closing scene has the guy very confused looking and off-camera it says is it true? do cell phones cause cancer? they all speak at the same time, we are not sure, maybe, maybe, than the voice of authority says i want you to say the words in front of the mirror. while we are concerned about the evidence at this time we have no proof that cell phones are causing brain cancer. that s the lost line of that movie. we have no proof. what is proof? proof in science on the issue comes from two things, you study animals experiment only under controlled conditions or you look at patterns and people. the difference between the two fields which i happen to be both, and epidemiologist looking for patterns and people. the epidemiologist can only tell you about the past. we have to wait for the bodies, we are body counters in