The anti-vaping lobby is at it again, with a new study allegedly showing e-cigarettes encourage smoking and played no role in the recent and rapid declines in teen cigarette use. Professor Stanton Glantz and Dr. Lauren Dutra at the University of California San Francisco claim the declining trend in adolescent cigarette smoking from 2009-2014 was no different from 2004-2009. Based on these findings the authors argue there is no evidence e-cigarettes affected the decline in youth smoking, with Glantz asserting, E-cigarettes are encouraging — not discouraging — youth to smoke and to consume nicotine, and are expanding the tobacco market.