A bishop uses his mobile phone to take photographs as he arrives for the canonisation ceremony of Popes John XXIII and John Paul II to start in St. Peter’s Square at the Vatican

A bishop uses his mobile phone to take photographs as he arrives for the canonisation ceremony of Popes John XXIII and John Paul II to start in St. Peter’s Square at the Vatican

A bishop uses his mobile phone to take photographs as he arrives for the canonisation ceremony of Popes John XXIII and John Paul II to start in St. Peter’s Square at the Vatican April 27, 2014. Pope John XXIII, who reigned from 1958 to 1963 and called the modernising Second Vatican Council, and Pope John Paul II, who reigned for nearly 27 years before his death in 2005 and whose trips around the world made him the most visible pope in history, will be declared saints by Pope Francis at an unprecedented twin canonisation on Sunday. REUTERS/Max Rossi (VATICAN – Tags: RELIGION)