(FILES) This file photo taken on December 28, 2016 in Vertou, western France, shows logos of US online social media and social networking service Facebook.
Facebook said October 5, 2017 it was testing a new "button" to allow users to get more context about a news source, in the latest move by the leading social network to curb misinformation.The new feature will allow users to get context on the source of a news article with a single click without leaving Facebook and its news feed.
/ AFP PHOTO / LOIC VENANCE
