Sorry Flash, but your "science" is misleading, if not just plain inaccurate. First of all, define your terms: What does "stays in your system" mean? If you mean that a test could reveal that you had used the substance in the past, you are correct. But if you mean that the effects on a person stay longer with cannabis than alcohol, you are incorrect. The effect of THC on a person will dissipate in 2-3 hours at most, while the effects of alcohol can last longer. The difference is that alcohol will pass through your system and become undetectable fairy quickly, with the testing for presence and the influence on a person corroborating in a fairly close manner. Cannabis, however, breaks down into metabolites that bond with fat cells. Most tests for cannabis use (urine, saliva, and hair) do not test for THC, the active ingredient. Rather, they test for the trace metabolites. As a result, a regular cannabis user can stop cold turkey and still test "positive " 3 months later! Blood testing for cannabis use does test THC levels and more strongly correlates with recent use than the other tests. Even this, however, is not an accurate test of intoxication, as regular users, such as medical users, will usually have a constant blood level of THC while not feeling any effects whatsoever.
While I support treating cannabis similarly to wine for political reasons, in reality, cannabis is infinitely safer than either alcohol or tobacco.
Annual deaths in the United States:
Alcohol: 88,000
Tobacco: 480,000
Cannabis: 0
As the DEA's own administrative law judge, Francis Young, found after several years of hearings, "Marijuana, in its natural form, is one of the safest therapeutically active substances known to man." There literally is no fatal dosage. (Though, admittedly, one researcher I spoke with theorized that a joint the size of a telephone pole smoked in 15 minutes might be fatal).
And, having experienced cannabis use associated with music both as a listener and as a musician, I have seen may situations where cannabis enhanced both the listening and playing experience and such was confirmed upon later review of recordings. The list of famous musicians who have used cannabis includes Louis Armstrong, Buddy Rich, James Brown, Hoagy Carmichael, Bing Crosby, Ray Charles, Benny Goodman, Gene Krupa, Don Ho, Thelonius Monk, Smokey Robinson, Bessie Smith, Barbra Streisand, Lester Young, and just about every rock musician over the past 60 years.
Other cannabis users include Carl Sagan (who smoked just about every day), Louisa May Alcott, Maya Angelou, Lord Byron, Lilian Hellman, Victor Hugo, Rudyard Kipling, Jack London, Norman Mailer, George Orwell, Pablo Picasso, Cole Porter, Robert Louis Stevenson, Amy Tan, John Updike, William Butler Yeats, Richard Branson, Bill Gates, Steven Jobs, Rick Steves, Stephen Colbert, Rodney Dangerfield, Jackie Gleason, Whoppi Goldberg, Bob Hope, Steve Martin, Groucho Marx, Joan Rivers, Lily Tomlin, Mark Twain, William F. Buckley, Sam Donaldson, Francis Crick, and Margaret Mead, to name a few.
A pretty impressive group for people who are "lazy" and "unproductive", don't you agree?
As for driving, the actual scientific truth is that cannabis is far, far safer than alcohol. Studies reveal that a person on alcohol tends to drive faster and take more chances than when they drive straight, regardless of their relative experience or inexperience with the drug (and yes, alcohol is a "drug" as is the caffeine in your coffee). With cannabis there is a marked difference between experienced and inexperienced users. Research shows that experienced cannabis smokers tend to drive slower and take fewer chances than when they drive straight. Furthermore, according to studies, cannabis users can overcome the influence of the substance when needed, as in emergency situations, while alcohol users cannot, regardless of experience.
I'm not suggesting that anyone should drive stoned, but I'd certainly feel more comfortable knowing that the car coming in the other direction on a two lane road is being driven by someone under the influence of cannabis than under the influence of alcohol.
Cannabis is illegal strictly for political reasons, not scientific. It has enormous medical properties, from something as simple as treating insomnia to treating cancer. Studies have shown that cannabis users have no higher lung cancer risk than non-smokers. Perhaps even more significant, people who smoke both cannabis and tobacco have a far lower incidence of lung cancer than those who smoke only tobacco.
Believe me, I could go on and on on this subject as it is my number one area of expertise. For purposes of full disclosure, I have been practicing law, and been a political advocate in this area for over a quarter century. I am a co-author of California's Prop 215, the first medical cannabis legalization law, have served on the Board of Directors for NORML (National Organization for Reform of Marijuana Laws), currently sit on the Board of California NORML, and am a former High Times Freedom Fighter of the Month.
By far the most destructive side effect of cannabis use is that you can be arrested, go to jail, and be slapped with a criminal record that will follow you for life. How many more lives do we need to ruin just so the alcohol and big pharma industries can continue to make money hand over fist while the ghost of Richard Nixon looks on smiling??
Bill