Oh noes.
Google is not the US government. If government wants any information on you or your property, they either already have it or have the wherewithal to get it. Optical character recognition technology has been around for a VERY long time, so has data mining. If you're worried about privacy and are posting things to the internet, you're doing it wrong.
The sky is not falling. The very reason we all have guns is so that the government can't one day decide that we don't get to anymore. They do not have the option to go all widespread confiscation. On that note, I have to say that putting forth notions of some impending totalitarian one-world government infringing on our long held rights is, in my opinion, the interminable yammering of fear mongers. Not news and certainly not helping.