Before the 1970s, many police departments did not hire nonwhites. as this practice declined, the makeup of police departments changed, especially in large cities. the fact that minority officers now constitute percent of the officers in the nation's largest cities represents a dramatic change in staff composition over the past two decades.

According to the article,"social credit" is question 3 options: an experiment to people talk on-line a farming experiment that hurt people under mao ze dong using someone else's data from the internet, to give or take away things such as the right to buy an airline ticket a credit you get in china for having friends in real life, and not just on social media