The wife of the new head of MI6 has caused a major security breach and left his family exposed after publishing photographs and personal details on Facebook.
Sir John Sawers is due to take over as chief of the Secret Intelligence Service in November, putting him in charge of all of Britain's spying operations abroad.
But entries by his wife Shelley on the social networking site have exposed potentially compromising details about where they live and work, their friends' identities and where they spend their holidays. On the day her husband was appointed she congratulated him on the site using his codename "C".
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