http://www.cnn.com/2016/08/23/politics/us-army-audit-account...
http://www.cnn.com/2016/08/23/politics/us-army-audit-account...
That article is rehashing the same bogus premise that has been thrown around for decades. Here's how it works:
https://www.metabunk.org/debunked-8-5-trillion-missing-from-...
https://davidlandy.net/no-the-pentagon-didnt-lose-8-5-trilli...
Basically: within $N trillion in spending, there is a combination of non-audits and accounting irregularities, so therefore CNN throws up a click-bait article claiming the entire amount of spending is unaccounted for.
Pretty idiotic when you consider the sums being claimed vs the known expenditures in question. The premise is: every dollar that wasn't audited was stolen; logically, even if one were to assume theft (etc) happened, it's likely to be a dramatically smaller sum of the whole.