A thoughtful article by Thomas Brewton yesterday here explains that US inflation is also causing inflation in China. While America sheds jobs and lives on credit, the Chinese economy is becoming overheated. When the pop comes, the result may well be bankruptcies and unemployment in both countries, as well as in others. Richard Duncan's book "The Dollar Crisis" explains the mechanisms in detail.
If the yuan is allowed to appreciate against the dollar gradually, Chinese business will start to suffer, but starting now may mean less pain overall. The USA will also undergo painful - and politically unpopular - adjustments. Can the crisis be managed without a crash?