On The Show, a writer and journalist explored the legal — and abstract — meaning of citizenship. Here, nationality and how deep-rooted it may be, is explored.  

New psychology research suggests that nationalism is something that is established very early in life.

New York University developmental psychologist Andrei Cimpian and his fellow researchers interviewed children ages 5 to 8, and found that kids see national identity as something that is biological and stable, something that can’t easily be shed — and kids often see it as separate from citizenship.

The Show spoke with Cimpian more about the study and what sparked the idea to begin with.

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