In 2018 , YouTube introduced a system that would automatically add information boxes to videos that its algorithms determined may present conspiracy theories and other fake news , filling the infobox with content from Encyclopedia Britannica and Wikipedia as a means to inform users to minimize misinformation propagation without impacting freedom of speech . In the wake of the Notre-Dame de Paris fire on April 15 , 2019 , several user-uploaded videos of the landmark fire were flagged by YouTube ' system automatically with an Encyclopedia Britannica article on the false conspiracy theories around the September 11 attacks . Several users complained to YouTube about this inappropriate connection . YouTube officials apologized for this , stating that their algorithms had misidentified the fire videos and added the information block automatically , and were taking steps to remedy this
September 11 attacks
September 11 attacks
YouTube