Medical marijuana is suddenly at a crux here in MA. The voters spoke clearly in favor and the government put its head down. The issue didn't go away.
We don't have a system of licensing or overseeing dispensaries. Heck, we don't even have criteria for what justifies a script. We had lots of states out ahead to use as templates too.
Docs and cops (or anyone required to carry a gun may lose their livelihoods — caught in the limbo between state and federal pot laws.