VATICAN CITY, VATICAN - MAY 10: Coptic Orthodox Pope Tawadros II of Alexandria of Egypt and other leaders of the Coptic Church exchange gifts with Pope Francis at his private library on May 10, 2013 in Vatican City, Vatican. The Joint Declaration that was signed then by those two Popes represented "a milestone on the ecumenical journey" and helped institute a joint commission of theological dialogue between the two Churches. (Photo by Vatican Pool/Getty Images)
