The defenses of cannibas are just so many splitting hairs to me to be honest. Losing a foot is perhaps preferable to losing a leg but I think its better to remain intact to begin with.And while harder drugs may harm you, lighter drugs are the ones that bear the brunt of the propaganda mill of the DEA and other anti-drug groups. The idea of marijuana being a gateway drug, for instance; I know many people who smoke pot and do absolutely no other drugs. Normal people like you and me, who live their lives, go to work, raise families, and smoke weed.
The DEA would brand them criminals and penalize them for what is essentially the same as taking a drink of wine in the evening.