Mark Zuckerberg.

Mark Zuckerberg.

Photographer: Justin Sullivan/Getty Images

How Facebook’s Political Unit Enables the Dark Art of Digital Propaganda

Some of unit’s clients stifle opposition, stoke extremism.

Under fire for Facebook Inc.’s role as a platform for political propaganda, co-founder Mark Zuckerberg has punched back, saying his mission is above partisanship. “We hope to give all people a voice and create a platform for all ideas,” Zuckerberg wrote in September after President Donald Trump accused Facebook of bias.

Zuckerberg’s social network is a politically agnostic tool for its more than 2 billion users, he has said. But Facebook, it turns out, is no bystander in global politics. What he hasn’t said is that his company actively works with political parties and leaders including those who use the platform to stifle opposition—sometimes with the aid of “troll armies” that spread misinformation and extremist ideologies.