The tragedy took place at the Citadelle Laferrière, a historic fortress in northern Haiti and one of the country’s defining symbols.

China, the U.S., Russia and others have ramped up their contest over artificial-intelligence-backed weapons and military systems. The buildup has been compared to the dawn of the nuclear weapons age.

A visit to the Capitol by stars of the “Real Housewives” offered a glimpse into how the nation’s elected representatives mimic the gossipy world of reality TV. Nobody appears to relish the similarities.