It's been a couple of years since Edward Snowden and The Guardian introduced us to the NSA's spying tool called XKeyscore. Now, The Intercept has published new details about it from 48 documents Snowden provided, revealing that it's a lot more powerful than previously thought. Apparently, it's fed a constant flow of data from all over the world straight from fiber optic cables, can store content from three to five days and metadata for even longer (up to around 45 days). Based on these new documents, the publication has confirmed that the tool helped the agency look up other private info beyond emails and chats, including "pictures, documents, voice calls, webcam photos, web searches, advertising analytics traffic, social media traffic, botnet traffic, logged keystrokes, computer network exploitation (CNE) targeting, username and password pairs, file uploads to online services, Skype sessions and more." The NSA even tracked phone connections to Google Play and Samsung's App Store.