Something has been on mind for a while.
I see lawsuits against Google collecting / selling personal data and ideas to combat its monopoly in search. What I don't see is a discussion about regulating companies that have data on the majority of the population.
I know for a fact that Google used search insights to inform strategy. By knowing what people search for and modeling our behavior, they have an unprecedented ability to forecast future events. I expect that Facebook and other, lesser-known companies do the same. I believe it is dangerous for a company to have this ability.
I am not an expert in public policy and politics. Would it make sense to have regulatory oversight over all companies that have data on, e.g., over 50% of a country's population?