https://www.siliconvalley.com/2019/04/02/youtube-executives-ignored-warnings-letting-toxic-videos-run-rampant/

A year ago, Susan Wojcicki was on stage to defend YouTube. Her company, hammered for months for fueling falsehoods online, was reeling from another flare-up involving a conspiracy theory video about the Parkland, Florida high school shooting that suggested the victims were “crisis actors.”

Wojcicki, YouTube’s chief executive officer, is a reluctant public ambassador, but she was in Austin at the South by Southwest conference to unveil a solution that she hoped would help quell conspiracy theories: a tiny text box from websites like Wikipedia that would sit below videos that questioned well-established facts like the moon landing and link viewers to the truth.