All of the federal government's efforts to stem the tide of the financial meltdown have added hundreds of billions of dollars to an already staggering national debt, a sum that is expected to double over the next 10 years to more than $23 trillion. Ten Trillion and Counting traces the politics behind this mounting debt and investigates what some say is a looming crisis that makes the current financial situation pale in comparison.

The journey begins as correspondent Forrest Sawyer takes viewers to a secret location: the Treasury's debt auction room, where the U.S. government sells securities backed by the "full faith and credit of the United States." On this day, the government is auctioning $67 billion of Treasury securities. The money borrowed will be used to fund services and programs that the government cannot pay for through tax revenues alone.

Observers warn that the United States' reliance on borrowing to fund essential programs is a dangerous gamble. For the first time, investors are beginning to question the ability of federal government to meet its growing financial obligations, and fading confidence can have dire consequences.