After the US presidential elections two weeks ago, many commentators point towards the role social media played in the outcome. When you have a sizable portion of an electorate who rely on social media as their primary source of news, what is the responsibility of internet companies like Facebook and Google to take down fake news websites propagating false information? Niki Cheong, a writer and researcher on journalism and digital culture, talks to us about the politics of misinformation on social media.