This is true.
Most developed nations have a "black budget", where military R & D goes on that the average Joe won't ever know about until a finished product comes to use - or when it is seen by accident, or when something is "accidently" leaked.
Black budgets, black ops, black R & D, a nation can not know for sure the cards in the hands of their opponents, and much bluffing goes on in between.
Let's hope we have a stronger hand.
nwlivewire