The actual liabilities of the federal government — including Social Security, Medicare, and federal employees’ future retirement benefits — already exceed $86.8 trillion, or 550% of GDP. For the year ending Dec. 31, 2011, the annual accrued expense of Medicare and Social Security was $7 trillion. Nothing like that figure is used in calculating the deficit. In reality, the reported budget deficit is less than one-fifth of the more accurate figure.