Las Vegas Review Journal – The Gaming Control Board told its license holders Tuesday they cannot participate in the state’s potential medical marijuana business. In an industry notice posted to the Control Board’s website, the agency, which is charged with licensing and regulating the state’s casinos and gambling equipment providers, said the federal government views distribution, possession and sale of marijuana as a crime. “Accordingly, unless the federal law is changed, the board does not believe investment or other involvement in a medical marijuana facility or establishment by a person who has received a gaming approval or applied for a…