Which then raises the question: why isn't the US using open source software everywhere, paying the same -or very likely - much less to maintain and expand said software? Can you imagine the money stream towards thousands of devs fixing any (but, feature or security) issue, which they would already do for free? Finally some recognition and so on.
Finally they'd have software that they can trust and rely upon, it'll kill one huge company and spawn hundreds of smaller companies. Win-win all around