Support WBURJustice Department Promises Crackdown On Supervised Injection FacilitiesPlay03:10Download AudioBobby AllynAugust 30, 2018 ShareA visitor to the Harvard School of Public Health's mock safe injection setup checks out the items on the demonstration table set up underneath a tent on the quad near the medical school in Boston on April 30, 2018. (Jessica Rinaldi/Getty Images)