Maggie Penman

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.

We don't always behave the way economic models say we will. We don't save enough for retirement. We give money to charity. This week, why we act in ways that go against our "rational" self-interest.

What happens when we connect with people whose view of the world is very different from our own? In this month's Radio Replay, we bring you stories about the relationship between diversity, conflict, and creativity. This episode features reporting from our July 2018 podcast, "The Edge Effect," and from one of our 2016 shows, "Tribes and Traitors."

We all know the downsides of being poor. But what about the downsides of being rich? This week, we explore the psychology of scarcity...and excess.

Nearly a quarter century ago, a group of women accused a prominent playwright of sexual misconduct. For the most part, the allegations went nowhere. In 2017, in the midst of the #MeToo movement, more women came forward to accuse the same playwright of misconduct. This time, everyone listened. On this episode — originally broadcast in February 2018 — we explore the story through the lens of social science research and ask, "Why Now?" What has changed in our minds and in our culture so that allegations of sexual harassment and assault are being taken more seriously than they were in the past? A note: This story includes descriptions of sexual harassment and assault. It may not be suitable for all listeners.

Decades ago, a group of women accused a prominent playwright of sexual misconduct. For the most part, the complaints went nowhere. In 2017, more women came forward. This time, people listened.

On the city's South Side, residents and activists converged to protest the deadly shooting of a man Saturday. On Sunday police released a 30-second clip of the incident that set off the protests.

The Serbian tennis player won his fourth Wimbledon and his 13th major title with his victory over Kevin Anderson of South Africa.

The giant mountain of ice towers is threatening a tiny village, causing authorities to evacuate residents.

Serena Williams was on course for a record-tying 24th Grand Slam title when she was stunned by Angelique Kerber at Wimbledon on Saturday.

Citing a February ruling from a district court in New Mexico, the administration said it will halt risk adjustment payments required by the ACA. Insurers say the move will increase premiums.

Ditko worked with both Marvel and DC Comics, helping to create iconic characters like Spider-Man and Dr. Strange.