The "Canonizations": CFN interviews Professor Roberto de Mattei
"In the case of a Pope, to be considered a saint he must have exercised heroic virtue in performing his mission as Pontiff, as was for example, the case for Saint Pius V or Saint Pius X. Well, as far as John XXIII, I am certain after careful consideration, that his pontificate was objectively harmful to the Church and so it is impossible to speak of sanctity for him" - Professor Roberto de Mattei
