Cardinal Malcolm Ranjith has refused to meet Sri Lanka's presidential candidates until an investigation into the Easter Sunday attacks is released. The identity of Rome’s John Paul II Institute is “seriously threatened”, its vice-president has said. A Vietnamese Catholic activist will spend five years under house arrest following her release from prison. Muslim workers have reportedly saved 20 Christians from an Islamist attack in Kenya. Inés San Martín concludes her insightful four-part series on Argentina’s slum priests (part one, part two, part three). Cesare Lodeserto explains how a 66-year-old grandfather who served in Soviet navy became a Catholic priest. And Angelo Stagnaro profiles the Jesuit genius who asked to be lowered into a volcano “immediately before a major eruption”. Follow me on Twitter @lukecoppen for updates throughout the day.