By Eduardo Echeverria, Crisis Magazine - There is a legitimate doctrinal pluralism, but how can the Church distinguish legitimate from illegitimate ways of expressing the faith without distinguishing truth and falsity?... In the recent Letter of Pope Francis to the new Prefect of the Dicastery for the Doctrine of the Faith, I was particularly struck by two points made by Francis about the mission of the Dicastery: one, to promote theological knowledge rather than pursuing possible doctrinal errors; two, he cites from Evangelii Gaudium .....