If the PLA threatens that, just tell them 10 cruise missiles will be shot at the Three Gorges Dam from a submarine.
This!!!!!!
Get real! We have at least three very nukeable dams in our West. Some can be nuked without killing that many people. Dams that are far away from population centers. Thus if the ChiComs let their nukes fly, they could not be called mass murderers. In contrast, Three Gorges Dam getting nuked would kill 100,000 Chinese (my estimate) in cities and farmlands downstream. Then the US will get called mass murderers by the rest of the world. The UN too I (lol) suppose.