8K views · 464 reactions | Japan marked 80 years since the United States dropped an atomic bomb on Hiroshima during World War II. At a ceremony, a moment of silence signaled the time of the blast eight decades ago. The bombing in 1945 flattened the city, killing some 140,000 people. Three days later, the U.S. dropped another bomb on the city of Nagasaki. The commemoration comes as global nuclear fears grow amid conflicts in Ukraine and the Middle East. | PBS NewsHour | Facebook