Cannabinoid Receptors - Horizon: Cannabis - The Evil Weed

An excerpt from the BBC series Horizon: Cannabis - The Evil Weed

Links from the video:
www.norml.org
www.cannabisculture.com
www.pot.tv
www.whyprohibition.ca
www.leap.cc
www.cannabisfacts.ca
www.ssdp.org

Check out these channels for more great videos:
http://www.youtube.com/PotTVNetwork
http://www.youtube.com/IAMHEMP420