For the existing reporting flow from a year ago.... I think you'll appreciate that we need to be very careful about how to categorize fake news. We're focused on the worst of the worst, and you have to be careful that you don't capture things such as satire or opinion or that sort of thing. We need to be very careful about how we approach this.
What I can share is that one of the signals we use to figure out whether or not to prioritize a piece of content on News Feed is based on some of these reporting flows that you're talking about. For example, if we see lots of people reporting a particular article, that is one signal that may factor into how content may be down-ranked in News Feed.