If you didn't dislike drivers who spend all their time in the car chatting away on their cell phones before, a new survey from the University of Utah is going to push you that much closer to grabbing a tire iron and smacking the crap out of their X3 (in places where Cell phone driving laws don't exist). The study shows that drivers on cell phones drive about 2 mph slower on congested roads, thus slowing down every driver behind them. What makes them slower?
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