Facebook has fed everyone's public posts into its search engine, meaning that most updates will now be readily available for everyone — no matter how old they are.<br />The move follows an update last year that made all individual posts searchable.<br />But that was initially restricted only to posts by friends.<br />Now, 2 trillion public posts from all around the world have been added.<br />And it's highly likely that any Facebook users' posts have been sucked up in that move.<br />Facebook hopes that the tool will allow it to become more of a way of finding out what is going on — it will be possible to search for how people are reacting to a news event, for instance, or to find everything that everyone has said about a certain TV show.<br />It will also allow Facebook to track more accurately what people are talking about, so that its search tools can offer information about what's going on.
