Why We Hate

Evolutionary anthropologist Brian Hare searches for the origins of hate in both the past and current day, exploring what causes humans to treat each other with cruelty and violence.

Cognitive scientist Laurie Santos examines tribalism, asking why love for one group can inspire hate for other groups -- in politics, sports and even warfare -- and how tribal thinking shapes perceptions.

Journalist Jelani Cobb investigates how hate tools like propaganda, dehumanization, the internet, and symbols can incite, amplify and spread hatred.

An examination of what drives people to embrace hateful ideas; extremism expert Sasha Havlicek explores the factors that attract people to ideologies that fuel hate and violence -- from white nationalism to Islamic terrorism.

What makes people take part in extremes of hate, including genocide and crimes against humanity; international criminal lawyer Patricia Viseur Sellers investigates the role of perpetrators as well as those who resist the power of hate.

How people can resist succumbing to their worst impulses and awaken the better angels of their nature; neuroscientist Emile Bruneau explores how people can use their capacity for critical thinking, brain plasticity and strategies to combat hate.