In this photo provided by the Vatican newspaper L'Osservatore Romano, Pope Francis waves the crowd from the central balcony of St. Peter's Basilica at the Vatican, Wednesday, March 13, 2013. Argentine Cardinal Jorge Mario Bergoglio, who chose the name of Pope Francis, is the 266th pontiff of the Roman Catholic Church. (AP Photo/L'Osservatore Romano)LONDON (AP) — The new pope has daunting challenges in advance starting from the church sex abuse scandal to reinvigorating the flock.