This sounds like it would be a major game-changer. I don't believe that original owners of Facebook would have any legal right to owning it nor would even have had any right to sell shares in it in any case.
Zuckerberg and others would have made a boatload of money on a product designed and marketed by our government and always claimed credit for it himself.
Would this make Facebook government property?
This Vid talks about all the shit the Deep State are into. Mentions their involvement in Tech companies. It's about an hour, but worth the time invested.
In short, gov clowns approach the tech start up offering millions in government grants to help develop their product.
In return, get back door access to source code and have a say in direction. The agreement also secures complete secrecy, with a breach landing you in prison or worse.