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To design a "moral machine," researchers updated a classic thought experiment for the autonomous vehicle age. But do we really want artificial intelligence making decisions on who lives or dies?

Onetime targets of Brazil's dictatorship are worried that a candidate who openly admires the past military regime is expected to win Sunday's presidential election.

Law enforcement sources say they have made an arrest in the suspicious packages that were being sent to prominent Democrats and their supporters.

This October, the Senate Judiciary Committee has, for the first time ever, held judicial nomination hearings during a recess of the Senate — over the objections of the minority party.

People have been dressing up in costumes inspired by diseases for a long, long time. See if you can ace our quiz.

A recent book recounts the brutal lynching of 14-year-old Emmett Till in 1955. In it, the woman who accused the boy of assault admits she was lying. The FBI has reopened the murder investigation.

The speculation surrounding a string of mail bombs harks back to another era in American history, when bombs were a tool of political intimidation and when bombings were blamed on the victims.

NPR's Scott Simon speaks with Lucy Perkins to get the latest on a shooting that took place in a local synagogue in Pittsburgh, Pa.

NPR's Michel Martin speaks to Republican Congressman and former FBI agent Brian Fitzpatrick about his re-election campaign in Pennsylvania's 1st district.

NPR's Michel Martin speaks with millionaire philanthropist Scott Wallace, a Democrat challenging incumbent Brian Fitzgerald in Pennsylvania's newly-drawn 1st Congressional District.