Join Together News Roundup for May 25, 2010

Some states may say that marijuana is medicine, but the VA is having none of that: doctors affiliated with the federal veteran’s health program have been barred from recommending medical marijuana to patients … Meeting with the enemy: the head of the FDA’s new tobacco-regulation agency spoke this week at a conference of Big Tobacco execs … Ecstasy users have low levels of serotonin transporter in their brains, a study finds … and yet another study on moderate drinking and coronary health leaves open the possibility that lifestyle, not alcohol, could explain the apparent heart benefits.