BERLIN, GERMANY – AUGUST 09: A participant smokes a marijuana joint while marching in the annual Hemp Parade (Hanfparade) on August 9, 2014 in Berlin, Germany. Supporters of cannabis legalization are hoping legalized sale in parts of the USA will increase the likelihood of legalization in Germany. The city of Berlin is considering allowing the sale of cannabis in one city district. (Photo by Sean Gallup/Getty Images)