Gareth Williams, 31, dug out the guestlist for an event the former American president was going to as a favour for a pal.
The codebreaker — who had breached his security clearance — handed the list to the friend, who was also to be a guest.
MI6 bosses raged over the data breach amid growing tensions with US security services over Mr Williams’s transatlantic work .... http://www.thesun.co.uk