WASHINGTON (AP) — With the growing popularity of disposable e-cigarettes, communities across the U.S. are confronting a new vaping problem: how to safely get rid of millions of small, battery-powered devices that are considered hazardous waste. For years, the debate surrounding vaping largely centered on its risks for high school and middle school students enticed by flavors like gummy bear, lemonade and watermelon. But the recent shift toward e-cigarettes that can’t be refilled has created a new environmental dilemma.