Widespread dam failures in China

[FordGT90]

Dam collapse in China could point to a 'black swan' disaster

YANGSHUO, China (Reuters) - The dam at a small reservoir in China’s Guangxi region gave way last month after days of heavy rain in a collapse that could be a harbinger of sterner tests for many of the country’s 94,000 aging dams as the weather gets more extreme.

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Three Gorges is at severe risk:
https://www.youtube.com/watch?v=n6QyfrS7ARI

If Three Gorges fails...Wuhan is in the flood plain. 400 million people at risk.