Cardinal Luis Antonio Tagle has asked for "continued prayers" at his first public appearance since his appointment to the Vatican (Rocco Palmo). Argentina's outgoing and incoming presidents have attended Mass together in a show of unity. Christopher Lamb says that Cardinal Tagle is "on course to occupy the second most important position in Rome". John Allen asks what would happen if it emerged that St Óscar Romero "mishandled an abuse allegation against a priest". David Alton visits the site of a forgotten genocide of Christians. Jesse Dominick pays tribute to an Orthodox "missionary to the American people". And Nancy Wiechec shares an Italian Christmas recipe. Follow me on Twitter @lukecoppen for updates throughout the day.