"When Pope Pius XII died in 1958, his papers were sealed in the Vatican Secret Archives, leaving unanswered questions about what he knew and did during World War II. Those questions have only grown and festered, making Pius XII one of the most controversial popes in Church history, especially now as the Vatican prepares to canonize him. In 2020, Pius XII's archives were finally opened, and David I. Kertzer--widely recognized as one of the world's...

"In 1939, a team of workers beneath the Vatican unearthed an early Christian grave. This surprising discovery launched a secret quest that would last decades -- a quest to discover the long-lost burial place of the apostle Peter. From earliest times, Christian tradition held that Peter -- a lowly fisherman from Galilee, whom Christ made leader of his Church -- was executed in Rome by Emperor Nero and buried on Vatican Hill. But his tomb had been...

Draws on new archival research to examine Pope Pius XI's effort to reject Nazism, discussing how he enlisted the assistance of John La Farge, a virtually unknown American Jesuit, to craft a papal encyclical condemning Hitler's campaign against the Jews.