http://learn.genetics.utah.edu/podcasts/pcview.cfm?podcastid=14 It begins with a University of Colorado researcher discussing what are currently believed to be some of the finer points of how marijuana affects the mind and body. I'm guessing that his temperment is the result of an apparent bias he has for the legalization of marijuana - not a hidden agenda. The second interviewee is a researcher for a UK pharmacueticals company. He has some obvious biases since he's pushing a product, but it's an interesting listen nonetheless. The third guy is some douche bag drug officer from Utah who feels that law enforcement will be rendered utterly powerless in the event that marijuana ever gets legalized. I think the entire thing is somewhere in the neighborhood of 20 minutes long.