Hell no I wont admit cannabis is a bad thing.

They still have yet to prove it causes any life threatening damage to the lungs.
We wouldnt know if there was really anything wrong with the herb, because the government put a hold on research having to do with marijuana and requested all colleges and universities destroy any past reports on it.
Hmmmm why would they take an illegal substance that they deem as dangerous and prevent, even destroy evidence that it is what they say. Maybe it was because they found none.
Here is what they found instead: http://www.alternet.org/story.html?StoryID=9257