Ghanaian Archbishop Charles G. Palmer-Buckle of Accra, right, shown here with Cardinal Polycarp Pengo of Dar es Salaam, Tanzania Just like assembling a jigsaw puzzle, it’s easier to sort through items in the news when you know what the big picture is supposed to look like. It’s already clear that one of the Catholic megatrends of our time is the coming of age of the Church in Africa, which gives three recent storylines special importance. In late February, the Symposium of Episcopal Conferences of Africa and Madagascar (SECAM), the continent-wide assembly of African bishops, announced the appointment of a...