Now that Facebook, Google and Amazon know pretty much everything about us, how they’re using that information is drawing the focus of politicians throughout the Western world, asking in effect: “Shouldn’t something be done about this?”

Revelations that U.K.-based Cambridge Analytica apparently used data from more than 50 million Facebook accounts to try to influence the 2016 U.S. presidential election in favour of Donald Trump have sparked criticism over how the giant social networking company protects its users’ data.

Some people say we should also worry about that amount of information being collected by a few giant tech companies and dispersed to third parties for their own uses.

“I think the bigger question that we should be asking is actually what does it mean that those companies have that data?” said computational social scientist Sandra Matz, who is an assistant professor of management at Columbia Business School.

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