Collapse our economy.
China is the economy that would then collapse, not ours. We are the borrower, China the lender. When the borrower cannot pay, the lender is out of luck, unless of course they can repossess the property that the loan was used to purchase. That cannot happen with a country as we found out, and have been finding out since we've been giving money to most every country on the planet at one time or another since the dawn of time. We took the gas pipe on countless foreign loans. Perhaps now it's China's turn. We never seemed to wise up. Perhaps they will, that is assuming
their economy can stand it. From what is being reported, it can't. So as we speak they should be more worried about our ability to pay, more than we should about paying it. If you really think about it, the more we owe China, the tighter we put their nuts in the financial vise. Possession is , and always has been 9/10ths of the law. Bill T.