Google knows it has a search quality problem. It’s been plagued since November with concerns about fake news, disturbing answers and offensive search suggestions appearing at the top of its results. “Project Owl” is an effort by the company to address these issues, with three specific actions being announced today.
http://searchengineland.com/googles-project-owl-attack-fake-news-273700
https://www.youtube.com/watch?feature=player_embedded&v=sPPh0YMkXgI