Huffpost WorldPost

The Holocaust Just Got More Shocking -

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A sign along a road reads: 'Jews: Enter at your own risk' in German, Germany, 1930s. (Photo by FPG/Getty Images) | Getty File

THIRTEEN years ago, researchers at the United States Holocaust Memorial Museum began the grim task of documenting all the ghettos, slave labor sites, concentration camps and killing factories that the Nazis set up throughout Europe.

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