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.

The Holocaust is harrowing lesson in what humanity is capable when intolerance is left unchallenged. Survivor John Hajdu confronts those who still deny his suffering In October 1944, the far-right Hungarian Arrow Cross party,

General views of the former Nazi death camp Auschwitz-Birkenau on the 80th anniversary of its liberation. Heads of state and world leaders will gather at the site later to remember those who perished at the hands of the Nazi regime.