That's the question in Oregon this week. The Supreme Court of Oregon is deciding whether having a medical marijuana card that allows medicinal use of marijuana bars that card holder from obtaining a concealed handgun permit. Although some states issue cards making it legal to possess and use medical marijuana in those states, Federal law has stiff penalties for possession. However, the Feds generally seem to be leaving individual medical marijuana users alone and they have been targeting dispensaries in states such as Michigan as traffickers. A recent administrative opinion by Federal agents who administer the National Instant Criminal Background...