products because many of them contain highly a ductive product. shepard: e cigarette use has doubled since 2017. that s according to the new england journal of medicine. 1 in 412th graders reported vaping in the last month. 1 in 4. that s compared to one in five tenth graders and 1 in 11 eighth graders. a new bipartisan group of lawmakers launched a caucus to stop teen vaping. after this after the state of new york banned the sale of flavor e cigarettes. and we have the principal investigator for the new study. richard, thank you. what are the headlines? you did a good job summarizing them. vaping among teens, nicotine