USA Today:  “The smell of marijuana hung heavy over the city this weekend as partiers celebrated the unofficial “420” pot holiday.  April 20 has long been an important date within the marijuana community, and Denver for several years has hosted a massive marijuana festival to mark the day. This year was no different — except that pot smokers were joined in the city by investment bankers, lawyers and angel investors looking to cash in on the newly legal and fast-growing industry.”