
Facebook engineers gave extra value to emoji reactions, including “angry,” pushing more emotional and provocative content into users’ news feeds.

In a time of mega-leaks, journalists’ sources have become power players. Frances Haugen, the former Facebook product manager who shared company documents, led a meticulous media rollout.

Documents collected by whistleblower Frances Haugen could give the company “a lot to regret” in its fights to prove it’s not a monopoly.