Teenagers from local high schools flock to Brooklyn Vape in downtown Brooklyn. The store is small – a single room with vape paraphernalia stacked to the ceiling in glass cabinets. Many of the teens walk awkwardly through the shop and ask the clerk, a man who goes by Ali and wouldn’t give his last name, if they can buy an e-cigarette. Ali says most of them ask for a JUUL, a vaporizer fashioned into a sleek, rectangular prism that can vanish into a closed fist, but occasionally they’re looking for something a little different.