Re: The concern will be...
I like your thinking. There are small countries Microsoft could buy and then set their own tax rates, data rules, etc.
Invalidate the US government licenses - depends if they were sold or leased. Probably couldn't revoke them, but they'd soon run out in the natural product lifecycle.
Now, trolling, why doesn't the government just go open source? Two problems. The conversion is NOT cheap. Despite what small scale Linux geeks will tell you, it would cost Many billions to move desktops to Linux and Open Office, and 90% of all your other applications would need re-written. Second, you can't hide your own monitoring in the open source - by definition, the world has the source code, so any back doors in the closed source are gone in the open world.
Pass the Toffee Butterkist...
Biting the hand that feeds IT
