US CO: Denver Pot Holiday Brings Tight Security

Pittsburgh Post-Gazette, 20 Apr 2013 – DENVER – As tens of thousands of people gather to celebrate and smoke marijuana in Denver, police will be out in full force. But it’s not the pot smoking they’re concerned about at the yearly event, billed as the nation’s largest April 20 celebration. Instead, police say they are focused on crowd security in light of attacks that killed three at the finish line of the Boston Marathon.