> If these firms are buying U.S. debt with that money, then U.S. taxpayers are on the hook for hundreds of millions in debt payments to the same U.S. companies they already buy billions of dollars from in iPads, software and routers.
Isn't that the whole point? If it were undesirable for the US to borrow money and pay interest on it, why would the US Treasury issue bonds? And if they are issuing bonds, does it really matter who buys them?