Facebook has told researchers studying misinformation that the data it gave them three years ago included about half of its US users, not all as it then claimed (Davey Alba/New York Times)

Davey Alba / New York Times:
Facebook has told researchers studying misinformation that the data it gave them three years ago included about half of its US users, not all as it then claimed  —  More than three years ago, Mark Zuckerberg of Facebook trumpeted a plan to share data with researchers about how people interacted …

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