Carmen Russell-Suchansky

Philadelphia is suing for the return of the panels, which were paid for by the city and private contributions, rather than the federal government.

Mayor Sherelle Parker says the removal breached a cooperative agreement.

This history is a critical part of our nation's origins, and it deserves to be seen and heard.

A federal court will first hear a request to stop the federal government from disposing of the panels before trial.

For NPR News, I'm Carmen Russell-Suchansky in Philadelphia.