Charges of foreign power interference in the U.S. presidential election have raised grave national security concerns and touched off multiple federal inquiries that could drag on for months.

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.

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?