Pot isn't harmless but neither is sky diving.
I'm not going to get up here and try to tell people that smoking pot is harmless, because it is't, but that is no justification for pot being illegal. Alcohol is by no means harmless nor is smoking tobacco, yet both of these controlled substances are legal. You can become chemically addicted to both alcohol and tobacco but not pot. I say this makes pot far less dangerous than either alcohol or tobacco. And don't anybody start in on how pot can be psychologically addictive because EVERYTHING is psychologically addictive. Our government shouldn't prevent us from doing something just because it is potentially harmful to one's self, our government should only prevent us from doing things that are potentially harmful to those around us.