Well, the military has a lot of projects and operations the public doesn't, and shouldn't, know about. If you see about a sting in Syria on CNN, so do the hostile insurgents, or whomever are the enemies du jour. But how can you expense the operation on a public budget sheet, if the operation can't, for security reasons, be public? The answer is simple: you spend $10,000 on $10 toilet seats, and the $9,990 now accounted for dollars are paying for equipment, ammunition, transportation, training, payroll, and benefits for something that officially never happened.