It looks like a flash drive, is easy to conceal, and doesn’t leave a smoke trail or smell. Across the country, the use of these e-cigarettes like the popular Juul brand, is spiking among youth, but parents often aren’t even sure what they are and many teens mistakenly believe there are no serious health risks. Education Week Correspondent Kavitha Cardoza talked to teachers, principals, researchers, parents, and students on the trend in this PBS NewsHour segment. (July 18, 2018)