You wouldn't want to make something that can stand on its own and actually get complete the mission. How would you afford an army of Agile developers with inflated salaries constantly churning out code that solves problems that don't exist? How could you possibly pay back the VCs that poured millions into your company without ripping off the American taxpayer? If a defense contractor's website doesn't immediately show you what they make or can articulate the services they actually provide, there's a good chance are they are scam artists and should be in prison.