Speaking in the House of Commons, Cameron said, "Everyone watching these horrific actions will be struck by how they were, organised via social media.
"Free flow of information can be used for good. But it can also be used for ill. So we are working with the police, the intelligence services and industry to look at whether it would be right to stop people communicating via these websites and services when we know they are plotting violence, disorder and criminality."
Link to Original Source