The arguments over the effects of cell phone radiation go on, but the head of the University of Pittsburgh Cancer Institute is taking no chances.

Dr. Ronald B. Herberman has warned his 3,000 faculty and staff members to limit cell phone use, and he says children should only use them in emergencies because their brains are still developing.

"These waves have been shown to have the ability to penetrate into the brain," said Herberman, who based his advisory on international studies from countries such as France, Germany and India. "This provides a plausible basis for concern that it might be contributing to an increased incidence in brain tumors."

Score another point for Bluetooth headsets, I guess.

Read: UPMC memo: Cell phones pose cancer threat