MoD serves news outlets with D notice over surveillance leaks:
BBC and other media groups issued with D notice to limit publication of information that could 'jeopardise national security'. Editors were asked not to publish information that may "Jeopardise both national security and possibly UK personnel" In the warning issued on 7 June, a day after the Guardian first revealed details of the National Security Agency's (NSA) secret Prism programme. Ref. Source 4