Opinion: Marijuana is safer than alcohol - CNN.com
"Don't believe it could work? In 2009, Colorado's medical marijuana industry exploded, prompting the state to put in place the kinds of regulations I've just outlined. According to CDC data on youth drug use, from 2009 to 2011 -- a time when youth marijuana use increased nationally -- the percentage of Colorado teens using marijuana dropped more than any other state in the country and is now below the national average.
Marijuana is safer than alcohol; let's treat it that way. Adults who would prefer to use marijuana instead of alcohol should be free to do so. Just as significant, the law enforcement resources spent making those three-quarters of a million arrests could instead be devoted to preventing and solving real crimes.