I'm in Phoenix, AZ. We have terrible drivers in general, and I spend a lot of time on I-10. The problem was usually someone with a cellphone planted on their l

I'm in Phoenix, AZ. We have terrible drivers in general, and I spend a lot of time on I-10. The problem was usually someone with a cellphone planted on their left ear during rush-hour, occluding the view of their rear-view mirror.