Tens of thousands of Colombians died in the U.S.-backed war on drugs.
Running a marijuana business is more than a pipe dream, says Justin Breidenbach: It’s about taxes, banking, liability, supply and demand.
Washington's legal marijuana market opened last summer to a dearth of weed. Some stores periodically closed because they didn't have pot to sell. Prices were through the roof.
Critics say government hasn't issued enough licenses to meet demand when regulations change in April