Social networks crack down on terror posts

"Marvin Ammori, a 1st Amendment scholar and a fellow at the New America Foundation, said social media networks have to grapple with being the modern town square. Because it's possible that the companies eventually could come under legal scrutiny for materially supporting terrorist organizations, he said, it's imperative that they find a way to restrict expression.

"If the speech there is not what we consider core to democracy, then they have to make a judgment based on the core values of their platform: free expression with some boundaries," he said. "The problem is the boundary is hard to define.""