The Defence of the Realm revealed by Peter Wright decades before in Spycatcher), as well as noting how many of Wilson's MP's were spying for the Soviet bloc. The book's title was derived from MI5's Latin motto, "Regnum Defende". Historian Keith Jeffery was commissioned to write a similar authorised history on the Secret Intelligence Service (MI6) for release in 2010. The book received generally positive reviews from major newspapers. "The Daily Telegraph" called it "magisterial, authoritative, balanced, readable ... full of wry humour and with an eye for the absurd", declaring that "MI5 could not have wanted a better historian than him. This book is
Peter Wright Minister Margaret Thatcher in March 1981. Peter Wright, on the basis of his interviews with Sir Dennis Proctor and his friends, also alleged in his book that Proctor, former Permanent Secretary at the UK Ministry of Power, was at the very least, by Proctor's own account, an unwitting source of secret information to the Soviets via his close friend and Soviet spy Guy Burgess, from whom he had kept no secrets which, in Proctor's opinion, obviated the necessity to recruit him. Wright's sights were also focused on Labour prime minister Harold Wilson, suspicions about whom were initially triggered amongst the