Of course. But I don't see what you're getting at unless you're just suggesting a government sponsored solution would go the same way as Google+. I would argue otherwise - infact I do see a similarity in Google+ and the proposed FedBook: The members were already there to start. Having citizenship automatically gives you an account. However with FedBook, users would have more than just a social media account, it would be a platform to vote and can be as powerful as we want. Family trees can even be mapped out. All on the taxpayer without the need to sell data.