FILE - This Feb. 18, 2016 file photo shows a Cash Transaction Unit, a high-security operation with bullet-proof payment windows set up especially for marijuana businesses paying their monthly taxes in cash, in a retrofitted office space at the Oregon Department of Revenue at its Salem, Ore., headquarters. A proposal in Congress to ease the federal ban on marijuana could encourage more banks to do business with cannabis companies. But it appears to fall short of a comprehensive fix for an industry often forced to do business in cash. Pot is legal in some form in about 30 states, but companies that grow or sell it are often locked out at banks because the drug is illegal under federal law. The bill includes language to address the problem, but industry experts say some banks will still stay away. (AP Photos/Kristena Hansen, File)
