Expert Witness Blog
Transportation expert Deborah Hersman, chairwoman of the N.T.S.B., an independent federal agency which promotes traffic safety and investigates accidents, says the concern over cell phone use is increased due to more powerful phones that people can use to e-mail, watch movies and play games.
Every year, new devices are being released. People are tempted to update their Facebook page, they are tempted to tweet, as if sitting at a desk. But they are driving a car.