The campaign that is underway to demolish “Humanae Vitae” - the 1968 encyclical of Paul VI that said no to artificial contraceptives - has in recent days met with an unexpected obstacle in a book that reconstructs the genesis of that text, thanks to access, for the first time, to the secret documents concerning it, personally authorized by Pope Francis: > Gilfredo Marengo, "La nascita di un'enciclica. 'Humanae vitae' alla luce degli archivi vaticani", Libreria Editrice Vaticana, Città del Vaticano, 2018.The obstacle is all the more serious in that the proponents of a “paradigm shift,” meaning a liberalization of contraceptives...