Join Together News Roundup for June 15, 2010

They say it’s not a call for legalization, but Canadian researchers contend that marijuana interventions should be focused on the minority of users likely to have problems with the drug … Sick convicts? Nine times more parolees than average citizens in Montana have medical-marijuana cards … In the dubious honors department, Missouri now has the nation’s lowest tobacco tax — 17 cents per pack — thanks to a recent tax hike in South Carolina … Keeping away from drinking and smoking can help teens avoid headaches, researchers say …