Here is the short version, folks, based on hard facts from the past and present, and not on hypothesis situations, tests and studies :
Of course, Cannabis is not 100% safe, no drug is, but glass laced Cannabis is not nice. And it exists because Cannabis is illegal. If you want to think a large terrorist market would still exist for Cannabis if anybody could just grow it for free, go ahead, knock yourself out!
Also, I would urge all of you to pick an obscure subject i.e. skydiving, tin cans or coconuts, and gather a list of Google links demonizing them. Or we could just ban knives. They kill quiet a lot of people, and you and your evil bread cutting are directly to blame.
Also, next time you but a legal drink, think of the money you are giving back to alcohol companies who make yet more drink people get messed up and drink drive on.
That, or we could just talk about how strangely driven and demented MassiveTruck is, and why on earth a second thread was needed!