Going back to the OP, he mentions that something changed because of legalization such as DUIs coming about. You can get a DUI anywhere for weed. I am in PA, ask me how I know
If it does become legal throughout the states and federally, I want my record expunged.
I have no problem with issuing a DUI for weed, however, they need to effectively be able to test for it right then and there. I got in trouble for something like 0.052 nanograms in my blood. All because they found a few dead lighters and a opened pack of rolling papers in the car. Back end came out around a horrid turn and hit someone. This was before I realized I should have better tread tires on the back instead of the fronts. I know, stupid me. Took my son to the hosiptal to just make sure everything was fine (he was of course), and they took that as me leaving the scene of the accident, given them rights to search my car.
Anyways, I agree on that there are other issues in the states we need to worry about, bigger and worse drugs to battle (including alcohol). I, too, think it is bulls*** that alcohol can kill, but is legal.