The former director general of the British security service, MI5, has raised fears about the potentially adverse security implications of Brexit. Addressing an event on crime and security strategies at the Policy Exchange (a London-based Conservative-leaning thinktank) today, Jonathan Evans said it is “hard to see any security upside” after Brexit. Evans, who was head of MI5 from 2007 to 2013, expressed hope that Britain can still continue to cooperate ...