I advise to read comments, options for and against seem plausible..
Certainly a peak in interest in this atm. IF it goes, its really a disaster....
3 Gorges dam failing would change the direction of the world. All the funding of foreign revolution by China would stop, the PLA itself would be challenged it has a very large stomach to march on and a lot of agriculture and distribution would stop. As much a problem is all the industry along the Yangtze - in the same way as the US would have real problems if the Mississippi were to become unusable. If the floods were to be severe as far downstream as Shanghai it could take decades for China to recover. So industry would be challenged and the people and the army would be hungry not good news for the leadership.
I must declare a slight interest, my grandfather sailed up the Yangtze in a Royal Navy gunboat during the Boxer Rising - when things were a little different.
"The rules are simple: They lie to us. We know they are lying. They know we know they are lying, but they keep lying to us and we keep pretending to believe them."