A convincing lie no longer needs to look suspicious. It can appear in a familiar social media feed, come from someone who seems real, or arrive as a video that looks almost impossible to fake. By the time doubt sets in, the post may already have been shared thousands of times.
Few people understand that online environment better than today's guest. Nina Jankowicz has spent more than a decade studying what she calls the bad things that happen on the internet. She is an internationally recognized expert on disinformation and online harassment. She was also named one...