The US is going to try and inflate its way out of the massive debt it has accumulated since it really has no other choice. Therefore, it seems we should see massive buying of US assets by foreign governments or corporations. If you hold dollars or US bonds outside of the US your concern now is the potential for tremendous inflation in the US economy. One way to protect against that eventuality is to convert your dollars or bonds into US assets which will inflate in price as the US currency is devalued. Hence we see the French attempting to buy US reactors, etc. If the US government blocks these purchases then i think a big problem arises. Who will loan us money under those circumstances? And if there is no way for foreign holders of US debt to protect against US inflation, then i think we could see some panic and foreign corporations and central banks all rushing for the exit at the same time. That would be a nightmare situation.