CNN Death Row Stories March 16, 2014 06:34:00
That's the lowest number in more than two decades, and it's something we heard over and over as we travelled around the country. >> not really that harmful. >> it has a lot of benefits. not really too concerned about it. >> i think it's safe if you're a safe person. >> but the experts we spoke to said there is more to the story. >> there are people who compulsively smoke, who want to stop smoking, but they can't stop smoking. >> in fact, 9% of marijuana users will become dependent. now, that's not as high as other drugs, like heroin. 23% of users become addicted. 17% with cocaine. 15% with alc...