Douglas County Sheriff's Office says vape pens confiscated at Douglas High School tested positive for dangerous substances.
The Washoe County School District already has policies against vaping, but every couple of years, some changes need to be made as popularity grows.
FDA staffers who were reinstated said their immediate supervisors received no explanation or advance notice on the decisions.
The decision doesn't mean that Zyn is safe, just less harmful than older alternatives.
About 67% of 12th graders said they hadn’t used alcohol, marijuana, cigarettes or e-cigarettes in the previous 30 days.
The case comes shortly before the second Trump administration could change the FDA's approach.
This year's decline was mainly driven by a half-million fewer high school students who reported using e-cigarettes in the past month.
The decision lends new credibility to vaping companies’ longstanding argument that their products can help blunt the toll of smoking.