The "expert" was Stephen Bungay who, of course, has just published a book, "The Most Dangerous Enemy" about the Battle of Britain. He had been previously on another prog, together with yet another author of yet another book about the BoB. Also in the same panel of interviewees was the present AOC 1 Group (I think, apologies if I'm wrong). To say the latter's body language said that he'd rather be anywhere else other than in the presence of these two clever dicks scoring points off each other at every opportunity is to understate the hot house atmosphere of this typical product of the Beeb's love of revisionist thinkers ready as always to fight other people's wars. At one point Bungay dismissed German Intelligence as knowing everything but understanding nothing. One felt that the comment could be equally applied to him!