(CNN Business) When Mark Zuckerberg announced that Facebook was developing a section for news, he said it would be devoted to curating "high quality" information from "trustworthy" sources. That was back in April.

On Friday, as Facebook began rolling out the product for testing to users in the United States, the company revealed a baffling decision: Among reputable partners like CNN, The New York Times and The Washington Post, it had decided to include Breitbart in its list of sources for Facebook News. (A Facebook spokesperson said Breitbart will not be paid, and that it's the site's current content on the platform that made the outlet eligible.)

For those in need of a reminder, Breitbart is a far-right website with a history of publishing misleading stories about Democrats and critics of President Donald Trump. The site also has close ties to the Trump administration , and many of its employees have gone on to work in the White House.

Former Breitbart chairman Steve Bannon once described the site as a "f***ing machine" that he could use to "crush the opposition." Bannon had previously called the website a "platform for the alt-right." That doesn't sound like a "trustworthy" source one would rely on for "high quality" news. But, according to Facebook, it is.

Experts assail: If Breitbart is "high quality" news, what's low?

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