Argentine security forces also received testimony from a Polish-born Argentine citizen, José Furmanski, one of Mengele’s victims in the camps. “I met Mengele. I knew him well. I saw him many times in the Auschwitz camp, with his SS colonel’s uniform and, on top of it, the white doctor’s coat,” said Furmanski in press clippings saved by local intelligence. “He gathered twins of all ages in the camp and subjected them to experiments that always ended in death. Between the children, the elderly, and women… what horrors. I saw him separate a mother from her daughter and send one to...