ACW599
Thanks for putting me right ACW, so I was right all along it must of been the "Ministry of Funny Looks". Quote from the MI5 Website: "The two blocks of Thames House were aquired by the Government at the end of the 80's & refurbished for use by the Secret Service"........"The Security Service returned to the old Headquarters in December 1994 which it had occupied a few decades before". But this doesn't help us with tartanterror's quest to locate ex RAF pilots that flew U-2's.