The president of Greece, Karolos Papoulias, threw some muscle into his country's tug of war with Britain over the Elgin Marbles, decorative sections of the Parthenon that were removed in the early 19th century and now reside in the British Museum. Speaking on Saturday at the lavish opening of the New Acropolis Museum, a $200 million center built in part to prove to the world that Greece has the capability to care for its antiquities, Mr. Papoulias (above at the opening) said, "It's time to heal the wounds of the monument with the return of the marbles which belong to it."