Facebook has removed 14 million pieces of content dubbed likely to come from terrorists, as determined by new machine learning technology; its hashing of images, videos, audio and text to create content fingerprints; and its long-suffering human reviewers (thank you, you poor souls). They said that most of the content, which is related to the Islamic State (IS), al-Qaeda, and their affiliates, was old material that Facebook dug up by using specialized techniques.
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