We could cuf about half of that if we'd cut off the NeoCon influence taking us to wars that we don't need. Why don't we start there, then we would start saving even more because we wouldn't have tp pay for protecting ourselves from all that 'blowback terrorism' from our military misadventures around the world in our efforts to control other country's assets for our interests.
That old saying "live by the sword, die by the sword' fits here, when we start minding our own business as Ron Paul says, then we'll have a lot less trouble in this world. Sadly a great deal of our trouble comes from our coddling Israel in its every wrongful act against its neighbors, and that comes about from the Useful Idiot Christian Fundis pushing for Carte Blance Israeli support. The end result of that is people like you push for spending money on their wars that only they benfit from , not the US, but at US expense of money, blood, treasure and loss of legitimacy in the world stage.
How's that for an idea on how to save a big chink of that debt ? Prove me wrong !!! Go ahead and try !!!