The document discusses national debt and deficits. It notes that the US national debt was $5.6 trillion in 1999 and $12.8 trillion in 2010. It explains that debt is the accumulation of yearly deficits and surpluses, with deficits added to the debt and surpluses reducing it. The document also discusses "pork barrel" spending projects by Congress and debates around taxation and proportional versus progressive tax systems.