Despite being the taxpayers greatest investment - more than $700 billion a year - the Department of Defense has remained an organizational black box throughout its history. Its repelled generations of official inquiries, the latest being an audit three decades in the making, mainly by scrambling its accounting into such a mess that it may never be untangled. Ahead of misappropriation, fraud, theft, overruns, contracting corruption and other abuses that are almost certainly still going on, the Pentagons first problem is its books. Its the worlds largest producer of wrong numbers. At the tail end of last year, the Department of Defense finally completed an audit. At a cost of $400 million, some 1,200 auditors charged into the jungle of military finance, but returned in defeat. They were unable to pass the Pentagon or flunk it. They could only offer no opinion, explaining the militarys empire of hundreds of acronymic accounting silos was too illogical to penetrate. Twenty-nine years ago, in 1990, Congress ordered all government agencies to begin producing audited financial statements. In 2011, [the Pentagon] finally agreed to be ready by 2017, which turned into 2018. If and when the defense review is ever completed, were likely to find ... the militarys losses and liabilities hidden in Enron-like special-purpose vehicles, assets systematically overvalued, monies Congress approved for X feloniously diverted to Program Y, contractors paid twice, parts bought twice, repairs done unnecessarily and at great expense, and so on.