The numbers are obvious - someone isn't going to be getting much in the way of real repayments. It isn't quite clear who yet where the hammer will hit (my guess is #1 pensioners, #2 foreigners). What do the foreigners think is going to happen? Did they actually buy the outrageous line that the path to prosperity was feeding goods into the US consumer for paper? It seems a tough sell that anyone in a foreign government believed that.