Chaldean Patriarch Louis Raphaël I Sako has met Sheikh Rafi Taha Al-Rifai, the grand mufti of Iraq, to promote "dialogue and mutual understanding" between Muslims and Christians (photos). US vice president Joe Biden has defended Pope Francis's "critique of income inequity". A clerical abuse victim has launched the first civil lawsuit against the Polish Catholic Church. More than 17,000 young people preparing for marriage are expected to attend an audience with Francis on Valentine's Day. Eamon Duffy says John Cornwell's new book on the history of Confession focuses too narrowly on "dysfunctional sexuality". Fr Robert Barron argues that the Church "couples its extraordinary moral demand with an extraordinarily lenient penitential system". And headline writers savour Francis's meeting with a 1.5 ton, life-sized chocolate replica of himself. Follow me on Twitter @lukecoppen for updates throughout the day.