It's not like if one day China woke up and wanted their money back, we'd be speaking Chinese. 
I think there will be a hard time ahead of us but you can't solely blame that on one man.
Ben Bernanke (spelling?) the Federal Reserve Chairman of the Board has an absolutely horrible fiscal policy and a TERRIBLE idea/plan of action with this open ended Quantitative Easing. 
On top of that our Congress voted to bail out banks and auto makers and unfortunately they restricted them from lending so it hurt us more than it helped.
Rush Limbaugh is no better than the corner preacher talking about hell and brimstone. Unfortunately for the population he obtained a SEC licence.