Recent killings by U.S. officers have sparked widespread calls for police reform and an end to systemic racism. Here’s how U.S. policing compares with other countries’ approaches.

Endemic to the African tropics, the Ebola virus has killed thousands in recent years, putting the World Health Organization and major donor countries in the limelight as they’ve grappled with how to …

With economic inequality at an all-time high, some U.S. presidential candidates are proposing dramatic shifts to the U.S. tax code. How have similar plans worked elsewhere in the world?