Just a few interesting things to add;
about increased potency:
http://www.erowid.org/plants/cannabi...is_myth2.shtml
gateway drug thing:
http://www.erowid.org/plants/cannabi...s_myth13.shtml
more:
http://www.erowid.org/plants/cannabi...s_info14.shtml
Just more proof/articles that show most of the arguements against cannabis to be unfounded, or at the very least unproven...