Yaakov, I am a Catholic so I believe I know what the Pope meant. He doesn't meant G-d had anything to do with the matter, but just want to know why such a horror could happen . A few days ago, I discussed it with a Protestant friend and he agrees with me. As for the role of Pius XII and the disagreement between Jews and Catholics, above you have a post I sent (num. 13).
Nigeria says troops destroy extremist camp, rescue 178 people (AP)
from the article: Benedict at Auschwitz: unanswered questions