We'll be endeavoring to get current quotes about this specific issue over the next weeks. Check back for updates. In the mean time...
Click here for a page with quotes, pro and con, about medical marijuana. Note that in the con quotes, if you take smoked marijuana out of the picture, most of their objections go away. Many of them specifically speak positively of doing FDA-approved research while warning of the dangers of smoking and recreational use. (You have to scroll down 2 pages to start the pro/con section)