Tobacco giant Altria, which owns the maker of Marlboro cigarettes and a stake in vaping company Juul Labs, has for years quietly funded substance-use-prevention training for middle and high school students, despite ample research suggesting that industry-sponsored school programs do not discourage teenagers from smoking—and may in fact do the opposite. [...] a spokesperson for Altria wrote that the company does so “to help address a core business concern: underage tobacco use. In addition to the actions we’ve taken to market responsibly and limit underage access to tobacco products, we support a range of evidence-based positive youth development programs.”