Difficult to measure the horror of such acts normal and educated people who planned these death factories. Hard to imagine the plight of these innocent families, these children gassed with their mothers or people martyred in medical experiments close sadism. Also difficult to imagine that individuals carry revisionist or that you hear and repeating that the gas chambers were a "detail" of history. Fortunately that books like this one bring uncompromising testimony on facts that have led to 6 million innocent victims. Peace to their souls.