I think you guys are skimming over the most important reason; profitability. If the gubment can't make a healthy dollar off of it then they are not gonna back it. Take moonshine, pot etc etc. why aren't these things legal? They are safer than 99% of the prescription drugs that are out there. Hell, OTC drugs too. Its all about the dollar. If they legalize it they will have to spend billions in research, development, marketing etc etc. THEN hopefully have a market for it to supersede the cost. It's very in depth. Our country lost the "By the people, for the people" shit along time ago. It's now "By the dollar, for the dollar". Better take a hard look at Ron Paul for this next election. As always, my two fucking cents.