According to Reuters, the U.S. Justice Department said it filed a lawsuit to stop a nonprofit in Philadelphia from opening what could become the nation’s first supervised drug-injection site, in an effort aimed at addressing opioid abuse. The lawsuit follows warnings that cities who seek to open so-called safe injection sites, could face legal action. The lawsuit alleges Safehouse’s facility would violate the Controlled Substances Act by maintaining a place that would facilitate illegal drug use.