"Facebook likes to give the impression that it's staying ahead of extremists by taking down their posts, often before users even see them. But a confidential whistleblower's complaint to the Securities and Exchange Commission obtained by The Associated Press alleges the social media company has exaggerated its success. Even worse, it shows that the company is inadvertently making use of propaganda by militant groups to auto-generate videos and pages that could be used for networking by extremists. Hany Farid, a digital forensics expert at the University of California, Berkeley, who advises the Counter-Extremism Project, a New York and London-based group focused on combatting extremist messaging, says that Facebook's artificial intelligence system is failing. He says the company is not motivated to tackle the problem because it would be expensive. 'The whole infrastructure is fundamentally flawed,' he said. 'And there's very little appetite to fix it because what Facebook and the other social media companies know is that once they start being responsible for material on their platforms it opens up a whole can of worms.'"