Inside MI5 headquarters at Thames House, Andrew Parker concedes it is a strange time to be leaving the organisation he has led for the last seven years. Like other organisations, the Security ...

The slow horses of Slow Horses used to be agents, analysts, or operatives working out of the headquarters of MI5, Britain’s .

MI5 has been forced to “pare back” its focus on counter-terrorism in order to tackle the growing threat from Russia and other ...