MI5 and the Bondish Agent

Guy Liddell, head of MI5's B Section (counter-espionage overseeing double agents), was the only British intelligence officer allowed to keep an official war diary.  On this day, March 15, 1941, he made a journal entry which hinted at frustration over a new playboy now in his stable. "Skoot [the initial code name for double agent Dusko Popov] left for Lisbon this morning taking with him notes on his questionnaire and the Ministry of Supply circular for which he was asked and certain particulars