Such cases are of great concern to the secret services. While working for the agency Tomlinson was traumatised by atrocities he witnessed and the death of his girlfriend from cancer. After losing his job he was offered psychiatric counselling. Partly as a result of this case the House of Commons Intelligence and Security Committee are considering more exacting staff scrutiny. Harold Macmillan once said anyone who spent more than 10 years in the world of spies must be either weird or mad.
History is full of examples.
The first chief of MI6, Sir Mansfield Cumming, wore a gold-rimmed monocle, wrote only in green ink and trundled round his office on a child's scooter. He regarded spying as a game. I always took it with me on spying expeditions before the war. That's when this business was really amusing. After the war is over we'll do some amusing secret service work together.