By CHRISTINE FERNANDO and MARION RENAULT Associated Press CHICAGO (AP) — In the last decade, high-profile police killings — including George Floyd in 2020 — have shaken the nation and led to widespread protests and calls for reform, including hiring more nonwhite and female officers. But there was little research to back that up. Now, a new study published Thursday in the journal Science, suggests that diversity in law enforcement can indeed lead to improvements in how police treat people of color. 'It's a system that very clearly needs reforming,' said University of Pennsylvania data scientist Dean Knox, a co-author […]

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