Survey finds 2 million U.S. teens are vaping marijuana

By CARLA K. JOHNSON
The Associated Press
A school-based survey shows nearly 1 in 11 U.S. students have used marijuana in electronic cigarettes, heightening concern about the new popularity of vaping among teens.
E-cigarettes typically contain nicotine, but results published Monday mean 2.1 million middle and high school students have used them to get high.
The devices are generally considered a less dangerous alternative to regular cigarettes, despite little research on their long-term effects i