Nella Glick describes the terror of hiding from the Nazis and explains why she shares her story with children today.

I feature my mother’s testimony in my teaching because it gives my students a direct link, through me, as my mother’s son, to the genocide that was the Holocaust, writes Menachem Z. Rosensaft.

Why did humans show so much hatred and indifference toward fellow humans during the Holocaust? Psychology provides some answers that have implications for today.

That creates risks: the Holocaust didn’t begin with mass murder. The dehumanization of Jews progressed gradually from public exclusion to eventual internment to finally extermination. Millions of regular Germans—and Europeans more broadly—facilitated or silently accepted these actions.