China Prepared for One Kind of Himalayan Flood. Then a Different Disaster Struck.

After a glacial flood last year, Chinese officials strengthened defenses at a border crossing with Nepal. But last week’s “cascade of hazards” overwhelmed them.Searching for missing people along a road leading toward Gyirong Port in China on Sunday. On Wednesday a tsunami-like wave of ice, boulders and water tore through the port complex.