set up an Instagram account in a bid to “reach out directly”MI5 boss Ken McCallum said the mission to combat terrorism and espionage within the UK will be best-served by being less secretive.While he acknowledged that some things would always need to be kept secret in order to preserve a “vital edge” against evildoers, a more open posture for the agency would help it liaise with academics, companies, and ordinary citizens to identify and neutralise emerging threats.He added that MI5 needed to diversify to match an ever more diverse set of dangers.He said: "We must get past whatever Martini-drinking stereotypes may be lingering by conveying a bit more of what today’s MI5 is actually like.”.