Denver

Fusion's Chief Cannabis Correspondent, Ryan Nerz, takes us to Denver, Colorado, in the wake of landmark legislation that allows everyone over the age of 21 to buy weed at retail stores. He talks to a dispensary security guard as well as masked black market weed growers, visits a veterinarian who explains why pets are getting into pot, and interviews hip hop's high priest of pot, Wiz Khalifa, in a segment called – appropriately – The Green Room.