I don't see how that's significantly different than "missing". If I can't feasibly track down the $100 bill you lent me last week, then it's "missing" even if

I don't see how that's significantly different than "missing". If I can't feasibly track down the $100 bill you lent me last week, then it's "missing" even if I know I did something with it sometime and I have a pretty good idea that it's at my house. Or at work. Or maybe in my car. Or maybe I buried in the sand in Iraq. Or maybe I spent it on a pizza party. Who knows? All I know is that I did something with it and it's somewhere. It's perfectly feasible for the military to track every expenditure from the top all the way down - the Army has the largest budget in the military, but even their budget is only about half that of Walmart, yet Walmart can very accurately track where their money goes. The military already has a very accurate supplier tracking system that tracks the manufacturing of every part used in every piece of military equipment, so it's not like they have no experience running databases or keeping track of paperwork. If the military doesn't know where trillions of dollars went, how does it know that it even needs those trillions and that the money wasn't just wasted on frivolous items (like contractor kickbacks?)