I think it's been well established that marijuana has very good medicinal value for a number of ills. The issue is whether recreational use is overall beneficial to society. And the Fed's believe it's harmful. No doubt the alcohol and tobacco lobbies pay big money to prevent legalization. But there's been plenty of research done by legitimate concerns, like universities, that have published in peer reviews their findings. So take it up with them. Saying it's all b.s. because they drew different conclusions than you want to hear isn't a rational argument.