An entrepreneur sells pre-rolled joints during 420 celebrations at Hippie Hill in Golden Gate Park in San Francisco, Calif., on Sunday, April 20, 2014. (AP Photo/ San Francisco Chronicle, Sarah Rice)
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An entrepreneur sells pre-rolled joints during 420 celebrations at Hippie Hill in Golden Gate Park in San Francisco, Calif., on Sunday, April 20, 2014. (AP Photo/ San Francisco Chronicle, Sarah Rice)
