Internal Facebook docs show employees touted its scale and dominance in presentations, including showing 78% of US adults and nearly all teens use its services (Leah Nylen/Politico)

Leah Nylen / Politico:
Internal Facebook docs show employees touted its scale and dominance in presentations, including showing 78% of US adults and nearly all teens use its services  —  Documents collected by whistleblower Frances Haugen could give the company “a lot to regret” in its fights to prove it's not a monopoly.