Two pillboxes have been added in the war to keep prescription medications out of the hands of teenagers and out of the water system.While these pillboxes are armored and have a big slot on the front, they're a different sort of emplacement than that conjured up by the name.The two MedReturn Drug Collection Units at the Judicial & Law Enforcement Center in Minden and at Stateline are designed to supplement the semi-annual prescription drug roundups sponsored by the Douglas County Sheriff's Office.The boxes allow those with leftover prescription drugs to dispose of them safely without waiting for a roundup to …