The Pennsylvania attorney general’s office sued electronic cigarette manufacturer Juul Labs Inc. on Monday over how its products are marketed and sold to teenagers. Josh Shapiro, a Democrat, said in a statement that Juul “knowingly targeted young people with tactics similar to the tobacco companies’ playbook. There is no proof these e-cigarettes are safe and until there is, we need to get Juul products off shelves and out of the hands of young people.” There have been 61 confirmed and 59 probable cases of vaping products associated lung injury in Pennsylvania.