I nearly got WHALED by a woman who was on her cell phone, and not even looking as she drove right through a stop sign.
The problem with the 'if you're responsible, you won't hurt anyone' is that it doesn't protect you from the irresponsible cell phone drivers.
I agree with the geek (
) - although you won't be able to get to the root cause (which is people who pay more attention to anything BUT the road), banning cell phones while driving is a good start.