Earlier this year, a Michigan State University economist, working with graduate students and a former government official, found $21 trillion in unauthorized spending in the departments of Defense and Housing and Urban Development for the years 1998-2015.
The work of Mark Skidmore and his team, which included digging into government websites and repeated queries to U.S. agencies that went unanswered, coincided with the Office of Inspector General, at one point, disabling the links to all key documents showing the unsupported spending. (Luckily, the researchers downloaded and stored the documents.)
Now, the Department of Defense has announced it will conduct the first department-wide, independent financial audit in its history (read the Dec. 7 announcement here).
https://www.defense.gov/News/Article/Article/1391471/officials-announce-first- dod-wide-audit-call-for-budget-certainty/