Pope Francis drew a parallel between the plight of refugees and the suffering of Jesus at Mass on Palm Sunday (full text, full video). US president Barack Obama was expected to meet Cardinal Jaime Ortega at Havana cathedral on Sunday evening. Bishops in Argentina are preparing to declassify archives dating back to the Dirty War. Joseph Shaw identifies "the only thing which is important" about next month's apostolic exhortation. Sister Constance Veit of the Little Sisters of the Poor seeks to counter "misinformation about our pending Supreme Court case". Paul Elie examines the global Catholic campaign against capital punishment. And a new app helps you to track your works of mercy. Follow me on Twitter @lukecoppen for updates throughout the day.