How Does Facebook Know Who You Know?

When you log into Facebook, you’ll see a list of “suggested friends.” They’re full of people you went to high school with, random colleagues, and a bunch of people that you do sort of know … but why does Facebook know that you know them?
Motherboard contributor Kari Paul talks to us about her investigation into how Facebook and other social networks learn things about you that you’ve never purposefully given them access to. Short Circuit editor Nicholas Deleon talks to us about watching the Democratic presidential debate in virtual reality, and Lorenzo Franceschi-Bicchierai discusses why Uber’s latest security screwup is a bad sign of things to come.