Public Debt
The United States government debt, commonly called the public debt or the national debt, is the amount of money owed by the federal government of the United States to holders of U.S. debt instruments. Debt held by the public is all federal debt held by states, corporations, individuals, and foreign governments, but does not include intra-governmental debt obligations or debt held in the Social Security Trust Fund. The public debt is currently at 51.7% of GDP. (Source: U.S. Department of the Treasury - Financial Management Service, Wikipedia)