AUSCHWITZ: Technique and Operation of the Gas Chambers

Any normal human being, visiting the Auschwitz camp for the first time, feels a deep emotional shock. The weight of history allows of no other response. An ordinary but motivated tourist, I nearly did away with myself one evening in October 1979 in the main camp, the Stammlager, overwhelmed by the evidence and by despair. […]

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Source: Jean-Claude Pressac, AUSCHWITZ: Technique and Operation of the Gas Chambers, page 537, mazal.org/Pressac/Pressac0537.htm