http://www.spectator.co.uk/article.php3?id=2069 Did Pius XII do enough for the Jews? ”Perhaps the reason why these charges against Pius XII are so infectious is that they are constructed in such a way that they cannot be disproved. They are what Karl Popper called an unfalsifiable proposition: however many public attacks on Nazism Pius XII did make, one can always say he should have made more. Moreover, the denunciations of Pius today, unlike his own ones of Nazism, are cost-free: unlike Pius’s decisions, on which the lives of millions depended, today’s attacks on him produce a nice pharisaical glow of moral superiority, not to mention extremely profitable book sales.” 00:23