There were a couple of issues.
One, you have to maintain an engineering staff to constantly update and make certain that when working with industry.... In particular here, if the design is such that it's going to be employed across government and the private sector, the unique nature of all of those relationships has to be worked on a customer basis, so there's quite a bit of back and forth on that.
We've had this tool for more than a decade, and I can tell you that the cost of running the program I run is much, much higher than that. I think the number that's represented here is a reasonable number to put into play to ensure that the program remains viable over the life of the program. Contractually this is intended to be a three-year to five-year program, so you want to make certain that there are the tools available to make those updates as quickly as possible to reflect the reality of the marketplace.