Well the titular "whistleblower" of the article has claimed the U.S. recovered a saucer from World War II dictator Benito Mussolini on a tip from Pope Pius XII. Sorry but that's firmly in tinfoil-hat territory.
https://popculture.com/trending/news/vatican-helped-recover-...
[1] https://en.wikipedia.org/wiki/Decennial_Air_Cruise