Incarceration is the state of being confined in prison, typically as punishment for a crime. Every country in the world has a prison system of some sort, though the exact nature of that system—as well as the number of prisoners incarcerated within it—varies tremendously from country to country. The United States leads the world in total number of people incarcerated, with more than 2 million prisoners nationwide (per data released in October 2021 by World Prison Brief). This number is equ...