Our national debt is approaching 10 Trillion dollars. That's 30,000 dollars for every man woman and child in the united states. A nice chart showing the growth of the debt is here.
Half a trillion for the wars in Iraq and Afghanistan certainly have not helped.
Here's a list of our foreign friends who finance 2.2 Trillion of our habit:
Data from http://www.treas.gov/tic/mfh.txt.