Recently, many people (specifically geopolitical and financial analysts) have pointed out that there is a serious concern about China's Three Gorges Dam breaking and causing catastrophic flooding that would displace millions of people and disastrously disrupt global industrial production & supply chains.
While there is substantial evidence that China is currently going through some very serious abnormal flooding, I cannot seem to find any one expounding on what exactly the concern is. It is common to assume that if the Chinese government says everything is fine that it is likely not, but I would like much more specific technical analysis of the dam explaining the exact concerns. I have found some pseudo-science feeling explanations involving google earth images showing distortion in the dam, but much of this seems... dubious.
Are specific design criteria being surpassed? Is the water lever simply higher than the Three Gorges has ever seen? Are there structural, construction or engineering defects involved? I am not a Civil Engineer by trade and do not have experience with things like dams, bridges or roads - let alone mega-engineering projects such as these.
What exactly is the risk that the Three Gorges damn is susceptible to during this flooding, if any?