That some will engage in dangerous or criminal conduct is pretty much a given if the opportunity presents itself, but not necessarily a reason to prohibit the lawful version of the conduct. In this instance, the conduct is ingesting marijuana, and the danger is driving high. Before you pooh-pooh it off, consider that if you or a loved one is in the car next to Tommy Chong on the highway, it could take on a more ominous concern.
Any form of driving while intoxicated is obviously a bad idea, but smoking a joint or taking an edible before getting behind the wheel can pose distinctive risks. That, experts say, is because of the particular ways that marijuana affects the brain, and the fact that there’s no standard dose for a federally criminalized drug.

