supervised injection sites

The federal court decision paves the way for the nation's first supervised injection site to open in Philadelphia. The Justice Department argued that it amounted to "in-your-face illegal activity."

The Justice Department has mounted a legal challenge to block the effort, claiming such a site violates federal drug laws and would enable opioid users.

The U.S. government is intervening to stop the creation of a medical facility in Philadelphia where people could inject heroin without risk of overdose. Canada and Europe already have such sites.