Unsafe at Any Site A look back at Safehouse's planned supervised injection site and the U.S. attorney who helped thwart it “The Safehouse injection site may be safe for drug addicts,” I remember a South Philly protester saying to me last February at a street protest in South Philadelphia – “But it sure as hell isn’t safe for the neighborhood.” Thousands of South Philadelphians gathered in front of the Constitution Health Plaza at Broad and McKean streets to show their outrage that the Safehouse supervised injection site was scheduled to be opened there without their prior knowledge or consultation. The building houses medical offices as well as a children’s day care center.