April 20 has traditionally been a day for marijuana activists to defiantly light up to protest their drug of choice being outlawed. A separate marijuana industry event called the Cannabis Cup north of downtown is also drawing thousands.
By NICHOLAS RICCARDI, San Francisco Chronicle
Sun, 04/20/2014 - 12:25am
April 20 has traditionally been a day for marijuana activists to defiantly light up to protest their drug of choice being outlawed. A separate marijuana industry event called the Cannabis Cup north of downtown is also drawing thousands.