In this July 24, 2017 photo, Marijuana plants bloom at a laboratory in Natural Ventures in Caguas, Puerto Rico. Medical marijuana is legal in 29 U.S. states, but legislators in the largely conservative island of Puerto Rico had been reluctant to embrace an industry that the islands treasury secretary says could generate up to $100 million a year in part through a sales and use tax, as well as help ease an unemployment rate that has hovered around 12 percent, the highest compared with any U.S. state. (AP Photo/Ricardo Arduengo)
