Between European pressure, data breaches, and scandals associated with social media manipulation, the idea of some kind of comprehensive privacy legislation has gone mainstream over the last couple of years. But while people agree over the idea of privacy legislation, the substance of it is fiercely contested. To explore the competing visions of what we're trying to do when we talk about privacy legislation, Ben Wittes moderated a discussion with David Hoffman, Sally Greenberg, Cam Kerry, and Lydia Parnes.