California is poised to legalize marijuana in a few days, with polls showing a strong majority favoring Proposition 64. So it's time to ponder the impact of legalization on highway safety.
You're a passenger in a car, accompanying your friend to the mall, to a ball game or to lunch. A shriek of brakes, a crash of metal and glass, and you're the one getting transfused in the ER. Your friend looks on anxiously.