She’s the most high-profile guest of the “Katholikentag,” Germany’s Catholic Convention: Chancellor Angela Merkel came to the five-day event in Münster as it turned its attention to international politics on Friday. Merkel called the US decision to leave the Iran nuclear deal “a cause of great concern,” in a panel discussion and emphasized the role of international cooperation when confronting crises. […] Merkel has come under criticism for a refugee policy that some conservatives call too generous and how best to integrate, support or expel asylum-seekers continues to divide many in Germany. Cardinal Peter Turkson, a prefect in the Vatican...