A free “What Your Kids Don’t Want You to Know” educational event will be held at 6 p.m. on April 7 at the Niswonger Performing Arts Center.The presentation will educate parents and guardians about issues in Greene County schools such as vaping, prevalent drug types and negative influences of social media on students.The presentation is open to parents and guardians from Greeneville city and Greene County schools. Participants will have the opportunity to meet school resource officers from their children’s schools and learn more about the work