I completely agree that in terms of long-term effects for a lot of the areas that people are using cannabis we absolutely need more research. I think there are certain conditions where we now have ample research to be able to suggest that there is some good going on. We have a strange conundrum here in Canada: we have a court-ordered medical marijuana program. It hasn't followed a normal path. It's tied up with ideological beliefs as well, which makes it challenging for the research to go ahead as we would with any normal pharmaceutical.
Those are the challenges we face at the political level and the challenges we face as researchers as well.