us expects chinese currency revaluation, page-10

denroxon,
You could be right, but I am inclined to agree more with the proposition that the world is currently awash with cash all looking for return on investment and attemtping to balance risk with reward.

The US still has no problem selling its debt to the rest of the world, because it is viewed as generally a low risk investment, apart from the fact that it makes sense to China and other Asian countries with large cash surpluses right now to maintain these surpluses in dollars.
Not that many other sensible places to put it, and it certainly helps to do so if you wish to keep your currency in a trading band verses the USD.

There is of course no guarantee that the USD and the US economy will maintain that position, but it has usually shown it to be bit foolhardy to underestimate the prospects for the US and its economy (rather common among the few remaining paleo-lefties blinded by a devotion to an unworkable and obsolete dogma).