YouTube Tweaks Search Results as Las Vegas Conspiracy Theories Rise to Top

YouTube recently surfaced videos peddling misinformation, hateful messages and conspiracy theories to users searching about mainstream news events—problems that caused the site to change its search results to promote more authoritative sources. In response to criticism of some search results on social media this week, YouTube is accelerating the rollout of planned changes to its search engine, apparently. On Oct 3 night, the company began promoting more authoritative sources in search results, especially for those about major news events. YouTube doesn’t disclose how it determines which sources are authoritative.