The black market is stronger than ever.
Zedleppelin Reviewed by Zedleppelin on . More patient tracking from the Govt on the way 9NEWS.com | Denver | Colorado's Online News Leader | Marijuana tracking on the way in Colo. DENVER (AP) - Colorado wants to set up a first-in-the-nation tracking system of medical marijuana purchases to deter people from buying vast amounts of pot and selling it on the black market. Patients and marijuana advocates fear they will be harassed by a Big Brother-type intrusion as computers and video cameras monitor every ounce of pot sold in the state. Officials are also considering Rating: 5