Google and privacy: it's worse than that
"[S]ince 2002 or so, the US has been accumulating and using [...e]very email. Every link, recorded. Every jot and tittle [on the internet]" (Helmintholog)
I always think that interactive television is the precursor of Orwell's spy screens, and the "spy chips in wheely bins" discovery recently only adds to the sense of intrusion and incipient coercion.
In the future if (when?) they succeed in foisting computerised identity cards on people, they will come to control all access to money, supplies and services as well as transmitting your whereabouts and behaviour to control centres. A person will be subject to immediate control by stopping his or her credit and rights through the identity card database. A tiny guided munition will be sent to seek you out and deliver a punitive, paralysing or fatal sting. All in the interest of ensuring that the Haves continue to have and the Have-nots continue not to have.