[Jellowstrom]

If you're going to legalize marijuana either as a commercial product or a drug you're still going to have to address the rather hefty problem that the stuff is choc o' block packed with carcinogens. The human epidemiological studies that have been conducted so far have been so small and so poorly designed that they're worthless. Amongst the major problems with that sort of study is that currently most people who smoke dope either cease to do so or sharply curtail their consumption when they grow up. If you made a study of the health risks of cigarette smoking but confined it to people who quit smoking (or cut down to one butt per month) at age 30 cigarettes wouldn't look so bad either. If marijuana were legalized though people's habits would certainly change, they would smoke more and would be more likely to continue toking up through later in life. Let's not forget about second hand smoke either. No one has ever completed a serious large scale animal carcinogenicity study either.