Washington Post:  “the banking industry, which is federally regulated, is steering clear of anything to do with Colorado’s burgeoning marijuana industry. And that means the whole pot value chain – from grower to retailer to customer – is cash only.  In addition to making it harder for pot retailers to grow and manage a legitimate business, a cash-only enterprise is harder for the government to track for tax purposes and an easy target for criminals.  Wednesday, Colorado lawmakers . . . . approved a plan to setup a network of uninsured cooperatives that would offer basic banking services to pot businesses.