Why does the US have the highest number of imprisoned citizens?

Per 100,000 people, according to 2016 study. 2.1 million imprisoned.

Why does the US have the highest number of imprisoned citizens?
Why does the US have the highest number of imprisoned citizens?
Americans are dangerous, violent people
Capitalism isn’t meant for some “industries”
Other
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Why does the US have the highest number of imprisoned citizens?
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