(FILES) This file photo taken on September 11, 2013 shows the logo of social networking website 'Twitter' is displayed on a computer screen in London. Twitter has barred US intelligence agencies from accessing a service that sorts through posts on the social media platform in real time and has proved useful in the fight against terrorism, the Wall Street Journal reported. The newspaper, in its report May 8, 2016, cited a senior US intelligence official as saying that Twitter seemed worried about appearing too cozy with intelligence services. / AFP PHOTO / LEON NEALLEON NEAL/AFP/Getty Images
