Renee Klahr

Experts review Rochester, N.Y., police body camera video of a recent encounter of white officers with a Black girl in distress. She was handcuffed and pepper-sprayed in a squad car.

In the past few weeks, the nation has been gripped by protests against police brutality toward black and brown Americans. The enormous number of demonstrators may be new, but the biases they're protesting are not. In 2017, we looked at research on an alleged form of bias in the justice system. This week, we revisit that story, and explore how public perceptions of rap music may have played a role in the prosecution of a man named Olutosin Oduwole.

President Trump said this week that a few "bad apples" were to blame for police killings of black people. But research suggests that something more complicated is at play — a force that affects everyone in the culture, not just police officers. In this bonus episode, we revisit our 2017 look at implicit bias and how a culture of racism can infect us all.

The Democratic presidential field started out as the most diverse ever, and the largest in at least 40 years. It's since winnowed down to one.

Eight candidates meet the requirements to make the debate stage in September: Joe Biden, Bernie Sanders, Elizabeth Warren, Kamala Harris, Pete Buttigieg, Beto O'Rourke, Cory Booker and Andrew Yang.

As a society, we talk about sex more openly today than ever before. But so much still goes unsaid. This week on the Hidden Brain radio show, complicated stories of intimacy and attraction.

President Trump, the GOP-controlled Senate and the Federalist Society are putting their stamp on the federal judiciary for a generation with a corps of conservative appointments.

A citizenship question has not been included among the census questions for every household in almost 70 years. The Trump administration wants to change that with the upcoming 2020 census.

A trail of internal emails, memos and other court filings show how the Trump administration pushed to get a citizenship question on the 2020 census despite warnings of how it may undermine the count.

Chaos is a part of all of our lives. Sometimes we try to control it. And other times, we just have to live with it. On this week's Hidden Brain, we bring you two of our favorite stories about coping with chaos. They come from our 2016 episodes "Panic in the Streets" and "Embrace the Chaos."