Saturday, April 22 is a special day. It marks National Drug Take Back Day and several local law enforcement agencies will be set up throughout the Tri-Cities for your convenience.According to the Drug Enforcement Agency (DEA), National Prescription Drug Take Back Day encourages the public to remove unneeded medications from their homes to prevent misuse and opioid addiction. Locally in Greene County take-back locations are North Greene High School and Walmart, 3755 East Andrew Johnson Highway from 10 am to 2 pm.