Escher
Babby
Anybody who declares that only idiots smoke weed is simply ignorant. Would you say the same thing about alcohol? No, because alcohol is culturally accepted.
People simply need to look at the facts.
http://www.udel.edu/chem/theopold/chem465/copland.udel.edu/~rmarcus/drug%20chart.gif
And right, if used responsibly, I would say marijuana is better than some acne-faced kid who doesn't shower for weeks on end because he's just playing World of Warcraft.
I don't disagree with you, but isn't 'physical harm' a little limited when looking at the 'harm' of drugs?
I was talking to a Doctor I know the other day and he mentioned the Harm Index as a way of measuring harm from drug use, that includes not just physical harm but harm to other areas of the individuals life and activity. A lengthy bit of info is on it here:
http://www.homeoffice.gov.uk/rds/pdfs05/rdsolr2405.pdf