60 Minutes:  “Twenty states have now legalized the medical use of marijuana for the treatment of things like glaucoma, the effects of chemotherapy, and chronic pain; defying federal laws that still consider marijuana more dangerous than cocaine and methamphetamine. In November, voters in two states, Washington and Colorado, went so far as to approve marijuana recreational use too. . . . if you want to know what legalized marijuana might look like, the place to go is Colorado, which has the most developed medical marijuana industry in the country.”