The U.S. Supreme Court, which struck down a Massachusetts law that established a 35-foot buffer around abortion clinics, enjoys its own protest-free zone.

A federal law bars protests from the white marble plaza of the U.S. Supreme Court building, an irony that was not lost on supporters of abortion rights. In a recent press call, Martha Walz, chief executive officer at Planned Parenthood League of Massachusetts, said the court’s decision also raises questions about the buffer zone at the Supreme Court.

Court rules – drawn from the law – ban assemblies, processions, and displays on court property.