david, defas is an integral part of several of the accounting systems. you talk about it per se but also the conflict between the services they provided to the army, navy, marine corps on a stand alone basis if they were audited separately, that service provided would be really disruptive and inefficient. can you talk to the committee how they're looking at solving that issue with respect to defas? >> sure. we have a place where one is extending into the other. if you think of the army, navy and air force have financial management processes that extend into the defense finance and accounting service. so the way that we address that is we have the acronym that's an audit of that organization support to the others that external auditors can rely on. otherwise we would be paying tr the three or four auditors to show up. rather than each coming in, we'll do a similar thing over ammunition storage where it's in several different places and they will come to ammunition storage and say you can all rely on this audit piece so you don't have duplication of work.