A year ago at this time, Snapchat was certainly a thing, but not nearly the sensation it has become. These days, younger technology users gravitate to Snapchat, and NPR is using it to connect with a wider audience. What exactly is it? What are the risks? What are the benefits? Our conversation is all about the year in social media, with Snapchat leading the way. We also discuss Facebook's efforts to handle fake news, and we talk about the biggest legal issues facing social media. Our guests: