Because it's harder to see and focus on what we have in common, we tend to dehumanize each other, she says.

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One of the first lessons of terrorism is to dehumanize the victim.

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Yet the short path to the most heinous crime in human history was paved by an authoritarian leader who consolidated his hold on power by using every means at its disposal to demonize and dehumanize Jews and blame them for all of his nation's woes.

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