prison

The Stanford Prison Experiment is psychology's most cited study on power and cruelty — and one of its most contested. Here's what the evidence actually shows.

El Salvador incarcerates more than 1,600 people per 100,000 — the highest rate in recorded history — after President Bukele's mass gang crackdown from 2022. The United States imprisons 531 per 100,000, roughly five times the Western European average. Here's who imprisons the most, why, and what the data reveals about criminal justice as a policy choice.