As long as the US makes payments on the debt and the creditors are fine with the payments they're getting, everything works fine. That's the same way it works with anyone or any company who owes a debt. read more
The “debt” or Treasury securities of a monetary sovereign government (i.e. a government which creates and issues its own currency) - and assuming only that this debt is denominated in the nation’s currency - is not really debt at all. read more