Swiss theologian Hans Küng was for decades critical of what he perceived as the authoritarian stance of the papacy and the Roman Curia. But in his new book he finds grounds for optimism in Pope Francis. And when Jimmy Burns went to speak to him he found signs that the new Pope is taking an interest in Küng’s vision of the Church The most telling evidence, for Hans Küng, that he has come in from the cold are three cordial letters he has received from Pope Francis. Küng shows me the latest, in which Francis says he has read an article by the Swiss theologian  determinadamente – (“very carefully”) and that he welcomes the ongoing correspondence. “La carta y el artículo me hizieron bien” (“The letter and the article ma