ROCHESTER — For Pat McKone, the tobacco industry is changing more rapidly than ever before. "We've never had this powerful delivery system of nicotine for children that tastes good, that you didn't have to learn how to tolerate," McKone, a senior director for public policy and advocacy at the American Lung Association, said of e-cigarettes, or vapes. "They're cheaper, bigger and more powerful." Also gaining traction, McKone said: flavored nicoti…