Olga Lengyel, a prisoner at the Birkenau camp, wrote in her book entitled "Five Chimneys" that she had heard about Dr. Mengele from the other inmates before she saw him. Lengyel wrote that she had heard that Dr. Mengele was "good-looking" but she was surprised by how "really handsome" he was. Lengyel wrote, regarding Dr. Mengele: "Though he was making decisions that meant extermination, he was as pleasantly smug as any man could be."
But for all that this book has been set up as a work of Christian ethics and in that I think the book fails there is next to no specifically Christian ethical content. Why should one risk the lives of oneself and one's family for a stranger? Is the fact that so many didn't amount, as Eliezer Berkovits put it to "the moral bankruptcy of Christian civilization and the spiritual bankruptcy of Christian religion"? On these points Gushee is silent. And so, this book does not offer an account of the moral obligation the disciple of Christ owe to the persecuted Jew in particular or the persecuted stranger in general. It does however ask a very important question, and that alone makes this a book worth taking seriously.
Usage Note: Holocaust has a secure place in the language when it refers to the massive destruction of humans by other humans. In our 1987 survey 99 percent of the Usage Panel accepted the use of holocaust in the phrase nuclear holocaust. Sixty percent accepted the sentence As many as two million people may have died in the holocaust that followed the Khmer Rouge takeover in Cambodia. But because of its associations with genocide, people may object to extended applications of holocaust. The percentage of the Panel's acceptance drops sharply when people use the word to refer to death brought about by natural causes. In our 1999 survey 47 percent approved the sentence In East Africa five years of drought have brought about a holocaust in which millions have died. Just 16 percent approved The press gives little coverage to the holocaust of malaria that goes on, year after year, in tropical countries, where there is no mention of widespread mortality. The Panel has little enthusiasm for more figurative usages of holocaust. In 1999, only 7 percent accepted Numerous small investors lost their stakes in the holocaust that followed the precipitous drop in stocks. This suggests that these extended uses of the word may be viewed as overblown or in poor taste.

There is no postwar institution specializing in either World War II or the Holocaust that has collected systematic data about the righteous or about Christian-Jewish relations during the war years. Postwar historiography has given scant attention to this subject, except for biographies of heroes like Raoul Wallenberg in Budapest. Individual episodes are recorded in numerous published memoirs or hidden within the histories of the Jewish communities under German occupation. Others are found in some survivor testimonies, oral histories, and depositions.

Josef Mengele (/ˈmɛŋɡələ/; German: [ˈmɛŋələ]; 16 March 1911 – 7 February 1979) was a German Schutzstaffel (SS) officer and physician in Auschwitz concentration camp during World War II. He performed deadly human experiments on prisoners and was a member of the team of doctors who selected victims to be killed in the gas chambers. Arrivals that were judged able to work were admitted into the camp, while those deemed unsuitable for labor were sent to the gas chambers to be killed. With Red Army troops sweeping through Poland, Mengele was transferred 280 kilometers (170 mi) from Auschwitz to the Gross-Rosen concentration camp on 17 January 1945, just ten days before the arrival of the Soviet forces at Auschwitz. After the war, he fled to South America where he evaded capture for the rest of his life.