Buyers browse samples at Shango Cannabis shop on first day of legal recreational marijuana sales beginning at midnight in Portland, Oregon October 1, 2015. The sale of marijuana for recreational use began in Oregon on October 1, 2015 as it joined Washington state and Colorado in allowing the sale of a drug that remains illegal under U.S. federal law. (Photo by Steve Dipaola/Reuters)





Customers are seen inside Shango Cannabis shop to purchase legal recreational marijuana beginning at midnight in Portland, Oregon October 1, 2015. (Photo by Steve Dipaola/Reuters)





Shane Klum smells a sample at Shango Cannabis shop on first day of legal recreational marijuana sales beginning at midnight in Portland, Oregon October 1, 2015. (Photo by Steve Dipaola/Reuters)





Employees at Shango Cannabis shop sell legal recreational marijuana beginning at midnight in Portland, Oregon October 1, 2015. (Photo by Steve Dipaola/Reuters)





Customers are seen inside Shango Cannabis shop to purchase legal recreational marijuana beginning at midnight in Portland, Oregon October 1, 2015. (Photo by Steve Dipaola/Reuters)





Edibles are displayed at Shango Cannabis shop on first day of legal recreational marijuana sales beginning at midnight in Portland, Oregon October 1, 2015. (Photo by Steve Dipaola/Reuters)





Morgan McKee (R) helps Juliano Hamana (C) and Jayme Jennings (L) browse samples at Shango Cannabis shop on first day of legal recreational marijuana sales beginning at midnight in Portland, Oregon October 1, 2015. (Photo by Steve Dipaola/Reuters)





Buyers browse samples at Shango Cannabis shop on first day of legal recreational marijuana sales beginning at midnight in Portland, Oregon October 1, 2015. (Photo by Steve Dipaola/Reuters)





Juliano Hamana (R) and Jayme Jennings (L) browse samples at Shango Cannabis shop on first day of legal recreational marijuana sales beginning at midnight in Portland, Oregon October 1, 2015. (Photo by Steve Dipaola/Reuters)





Jackie Perte helps a customer at Shango Cannabis shop on first day of legal recreational marijuana sales beginning at midnight in Portland, Oregon October 1, 2015. (Photo by Steve Dipaola/Reuters)





Displays at Shango Cannabis shop on first day of legal recreational marijuana sales beginning at midnight in Portland, Oregon October 1, 2015. (Photo by Steve Dipaola/Reuters)





Buyers enter Shango Cannabis shop to purchase legal recreational marijuana beginning at midnight in Portland, Oregon October 1, 2015. (Photo by Steve Dipaola/Reuters)





First customer Davia Fleming at the Shango Cannabis shop to purchase legal recreational marijuana beginning at midnight, looks on in Portland, Oregon October 1, 2015. (Photo by Steve Dipaola/Reuters)