The drug thing is kinda interesting too. I'm reading about the Harrison Act right now (1914). It seems that some of those provisions were used as models for laws that are still on the books. For instance, according to the federal dispensation laws, a doctor could actually dispense marijuana in the course of his normal medical practice - but the trouble is two-fold, first he could lose his medical license, even though "technically" he's in compliance with the "other part" of the law, and the secondly, doctors are licensed by States and so the state law would have effect in terms of the licensing. So that explains why the "pot doctors" will send you down the street to the "pot club" instead of dispensing it themselves. Hmm.....