Church historian Alberto Melloni says the newly available documents should provide greater context and help explain the shifts in attitude of PiusXI regarding Europen politics leading up to WWII.
Historian Kertzer says that PiusXI was aware he was making deals with devils in order to secure advantages for the Catholic church, but that his attitude changed toward the end of his papacy.
In 1938, as he was growing even more concerned over what was happening in Germany and the rest of Europe, PiusXI asked an American Jesuit who was known for his anti-racist views to prepare a draft encyclical directly condemning racism and anti-racism and anti-Semitism.