Do you invest in the stock market? Do you invest in mutual funds, index funds, or Exchange Traded Funds (ETFs)? If the answer is yes, and you have a security clearance, you should be careful what you invest in. According to an email some military personnel report receiving from their commands, if your clearance is reviewed and you are found to own marijuana stock, you could lose your clearance (and quite possibly your job). You would have no recourse. Read more about the crackdown on Military.com.