From the article:
$17 billion may not even be the full extent of the Pentagon's wasteful spending in Afghanistan. Last week, ATR reported on a failed $800 million Pentagon budget meant to produce growth and stabilization in the Middle Eastern country. This is why an audit of their books is more important than ever. Until the Pentagon and other agencies become transparent with their spending, the taxpayers will never know.
Why the heck is the DoD doing this kind of work? This is mostly nation building. It really should be an entirely different agency with their own budget. The Military is not trained or designed to do this kind of work. Not surprising we are really very bad at it.