CO: Lawmakers Grapple with Booming Medical Marijuana Business

'Ten years after Colorado voters approved a medical marijuana measure, business is booming. There are an estimated 63,000 people with patient ID cards allowing them to buy pot for illnesses ranging from cancer to "severe pain." To serve all these consumers, entrepreneurs have opened hundreds of dispensaries – no one knows how many because there's no central regulation. In the university town of Boulder, for instance, there are between 60 and 70 medical marijuana shops, more than twice the 25 retail liquor stores.'