Ok look, I'm really not trying to make a nut-case argument, but cost of information allows aggregation of badness as well as goodness. Google is an extreme example but the level of information in the hands of a malicious government or other self-interested entity should not be relegated to 'could never happen here'.

I've little problem the the current Google, but 10-30 years from now will other forces in the world have access? But the issue is less google than the massive changes tech is making to the world.