I've recently been corresponding with a medical marijuana patient and Navy veteran, Eugene Davidovich, who was recently arrested in a particularly slimy undercover sting operation. Eugene, a member of a San Diego medical marijuana collective, was contacted by an undercover cop posing as a registered, licensed medical marijuana patient who asked for his help obtaining his medicine. You can probably guess the rest, but here's a link to a good comprehensive story on his arrest. Prosecutors argue that…