crisis, have you heard this, by having more marijuana. how stupid is that? >> these pills become so addictive. the dea said a huge percentage of heroin addiction starts with prescription. we think a lot of this is starting with marijuana and otr drugs.>> marijuana as a gat to more dangerous, more lethal narcotics. it's a notiothat has steered policy and public opinion for decades. >> leading medical researchers are coming to the conclusion that marijuana, pot, grass, whatever you want to call it, is probably the most dangerous drug in the united states. >> but what if that long-held notion isn't true? >> there's really no evidence that cannabis is the gateway the hard drugs. ten years of clinical experience i have never seen it. >> gateway sure. gateway to recovery. gateway to feeling better. gateway to getting my life back. >> cannabis is opposed to being