On this day, 78 years ago, Menachem “Mickey” Warshawski was liberated from Nazi captivity after years in the death camp at Auschwitz. He is one of the survivors, the relative few who lived through a system of murder. Their lives, and the lives of the millions of men, women and children who were exterminated in a racist genocide, stand as history’s warning that hatred, intolerance, totalitarianism and institutionalized racism are the enemies of humanity. Warshawski is 94 now. He lives in Delray Beach, Fla., one of an ever-smaller number of Holocaust survivors who can pay first-hand witness to the atrocities...