The Swiss Intelligence Service opens access to the Mengele file Keystone-SDA The Swiss Federal Intelligence Service (FIS) is granting access to the file on former Nazi war criminal Josef Mengele. Listen to the article Listening the article Toggle language selector English (US) English (British) Generated with artificial intelligence. This content was published on May 4, 2026 - 12:07 + Get the most important news from Switzerland in your inbox The Nazi officer and physician Mengele was dubbed the ‘Angel of Death’ after conducting inhumane experiments on inmates at the Auschwitz concentration camp. After the Second World War, Mengele fled to...