YouTube promoted a video featuring a conspiracy theory claiming that one of the survivors of the school shooting last week in Parkland, Florida, is a paid actor.

Facebook also promoted the conspiracy in its trending news section. The company says it will remove hoax content related to the survivors.

The YouTube video was first in the site's list of trending videos Wednesday morning. It was later removed.

YouTube and Facebook continue to struggle with people gaming their sites to spread false news.



YouTube on Wednesday promoted a video claiming to show evidence that one of the survivors of last week's school shooting in Parkland, Florida, is a paid actor. The video appeared in the top position in the site's trending section on Wednesday morning before being removed from the section later in the morning after several news stories and tweets about it started to spread.

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YouTube

The video shows a local news clip featuring David Hogg, a student at Marjory Stoneman Douglas High School who has made several news appearances over the past few days calling for gun control. The segment comes from a CBS Los Angeles newscast from last summer that shows Hogg telling a reporter how he got into an argument with a lifeguard. Conspiracy theorists say the clip is proof that Hogg shows up in media appearances as a paid actor.

Searching for Hogg's name on YouTube also brought up a large number of conspiracy videos as the top results.

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YouTube

A YouTube representative told Business Insider in a written statement that the conspiracy video made it to the top of the site's trending section by mistake, slipping through the site's safeguards because it contained a clip from an "authoritative news source."

Here's YouTube's statement:

"This video should never have appeared in Trending. Because the video contained footage from an authoritative news source, our system misclassified it. As soon as we became aware of the video, we removed it from Trending and from YouTube for violating our policies. We are working to improve our systems moving forward."

As for the conspiracy videos that were showing up in YouTube search results, a company spokeswoman sent a followup statement that said changes to the site's search algorithm designed to promote news from authoritative sources doesn't always work.

Here's that second statement from YouTube:

"In 2017, we started rolling out changes to better surface authoritative news sources in search results, particularly around breaking news events. We’ve seen improvements, but in some circumstances these changes are not working quickly enough. In addition, last year we updated the application of our harassment policy to include hoax videos that target the victims of these tragedies. Any video flagged to us that violates this policy is reviewed and then removed. We’re committed to making more improvements throughout 2018 to make these tools faster, better and more useful to users."