According to the blockbuster New York Times report, the rules show the social network to be “a far more powerful arbiter of global speech than has been publicly recognized or acknowledged by the company itself.” The Times discovered a range of gaps, biases and outright errors — including instances where Facebook allowed extremism to spread in some counties while censoring mainstream speech in others.

The rulebook’s details were revealed Thursday night thanks to a Facebook employee who leaked over 1,400 pages of the speech policing rulebook to the Times because he “feared that the company was exercising too much power, with too little oversight — and making too many mistakes.”