Government is slowly coming around. First step was to decriminalize it. Now we have to see who wants the legacy of changing marijuana from Schedule I to II or III.
The only main issue I see for marijuana is if the state & federal government were to green light it w/o the proper regulations and oversight. THC levels in the 20's or lower may be OK for over-the-counter consumption for adults, but there marijuana-based products that boast to have THC levels in the 70's. That could be abused and may create adverse long-term effects. See 'dabs': http://www.sacbee.com/2013/08/07/5632207/demand-for-dabs-a-controversial.html
IMO, the type of consumption (over-the-counter, prescription, ban) should be based on THC levels after standardized clinical studies are conducted. There is already some testing being performed for the lower THC levels in the US and in Israel. Sanjay Gupta's documentary was pretty informative.
If a company even mentions a cannabis product, the stock flies. Amazing to say the least. Profitable for those who perform DD and look to trade instead of invest in most of these stocks. A future problem for those who invest and hold on faith.
At least the SEC is starting to make moves in the OTC world. I expect them to dig deep into some of these pot stocks in the near future. SEC SUSPENDS TRADING IN THE SECURITIES OF TWO HUNDRED FIFTY-FIVE COMPANIES QUOTED ON OTC LINK http://www.sec.gov/litigation/suspensions/2014/34-71465.pdf
My posts are solely my opinion unless presented with (or directed to) factual information. All investors are strongly encouraged by myself to do their own due diligence before making an investment decision.