POT TV - A Cannabis Day battle is brewing between the City of Vancouver and pot proponents over a traditional Canada Day gathering at the Art Gallery. The organizers of Cannabis Day, an annual anti-prohibition protest in downtown Vancouver, have vowed to move forward despite receiving a cease-and-desist letter from the city. The event, which coincides with Canada Day, is a smaller-scale version of the massive 4/20 gathering held every year, and takes place at the same public space behind the Vancouver Art Gallery.