George Washington grew vast amounts of MJ on his plantation. So did Thomas Jefferson. They used it for everything from cloths to medicine for such things as medicine for menstrual cramps (the ladies in the family, of course) and stomach aches to smoking it for recreation. Washington's diary speaks of sparating the male and female plants, something done only for smoking MJ.
The Chinese have used it for thousands of years.
No one can document a death from its use. In spite of the fact that people claim you can get lung cancer from using it, no one has ever proven it.
I think more than enough is already known about MJ and no further research is needed. We going to do research for a few thousand more years beforing coming to a "conclusion"? To what point? To keep it illegal while the research is being conducted? That the trick to it all. Stall. Ignore the facts and the history. keep it illegal while pretending to do research on it.
Nobody can document a human death due to DDT ingestion.
Please provide documentation for your assertion that Thomas Jefferson or George Washington used marijuana recreationally. That is totally new to me.
Yeah, they grew hemp. They also owned slaves. What's your point?
Are you suggesting we use slaves to grow dope, just because Washington and Jefferson did? I don't think that would be constitutional. (Though the way you read the constitution, it may be.)