This isn't the first time we've discussed this on the podcast, and it probably won't be the last — disinformation online is a big and complicated topic, and there are a whole lot of angles to approach it from. This week, we're joined by Renee DiResta, who has been researching disinformation ever since the anti-vaxxer movement caught her attention, to discuss what exactly it means to say social media platforms should be held accountable.