Love must “become the constant of our existence”, Pope Francis said at yesterday’s Regina Caeli (full text, full video). Nigerian Catholics may need to arm themselves if security forces won’t protect them, Cardinal John Onaiyekan has said. The Vatican has denied signing an agreement to open churches in Saudi Arabia. Fr Alfred Wierzbicki asks why Mass-going is falling in Poland. Robert Mickens says Pope Francis is not to blame for the Vatican's translation problems. Peter Kreeft discusses the relationship between CS Lewis and Catholicism. And Rome Reports captures the moment a "Jesus doll" entered St Peter's Square. Follow me on Twitter @lukecoppen for updates throughout the day.