Ms. Angwin is a contributing Opinion writer and an investigative journalist. Social media can feel like a giant newsstand, with more choices than any newsstand ever. It contains news not only from ...

A version of this article first appeared in the "Reliable Sources" newsletter. You can sign up for free right here. Usually, when social media executives are brought to testify in front of Congress, ...

Everyone seems to agree that social media has become a cesspit, with cancel-culture mobs enforcing ideological purity on one side and trolls spreading conspiracy theories on the other. X and Facebook ...