In 2006, the primary economic concerns focused on : high national debt ( $ 9 trillion ), high non-bank corporate debt ( $ 9 trillion ), high mortgage debt ( $ 9 trillion ), high financial institution debt ( $ 12 trillion ), high unfunded Medicare liability ( $ 30 trillion ), high unfunded Social Security liability ( $ 12 trillion ), high external debt ( amount owed to foreign lenders ) and a serious deterioration in the United States net international investment position ( NIIP ) (-24 % of GDP ), high trade deficits, and a rise in illegal immigration.
