Medical marijuana
Obviously the people worried about testing people while driving, have never been high before. Smoking doesn't affect motor skills like drinking does. And the times in my life that I got majorly stoned. I was so paranoid while driving, that I drove better and paid attention to everything in detail... And that is not one of those things, like with alcohol, where I just thought I was driving better. I've never been so stoned, I didn't know where I was and was swerving all over the road. And in my younger years, we could sit around and burn an ounce of good stuff in a day. That's to the point, you can't get any higher, and you can still drive fine.