In Northern California, where the drug laws can change with the mile markers, a supplier of medical marijuana risks going one toke over the (county) line.
A federal effort to shut down state-legalized marijuana dispensaries in California is the latest example of the topsy-turvy habitat that growers, users and cops live in with medical marijuana.
A researcher who compared the Netherlands' marijuana use with that of other European countries and the U.S. finds the Dutch regime of tolerated small sales of cannabis does not lead to a drug free-for-all.