Shooting down of Flight 777 1 Jun 43
 

I see that P&S have reprinted the 1957 book written by Ian Colvin about the shooting down of the actor Leslie Howard by V/KG 40. They say that it includes new material and mindful of my work on V/KG 40 and an objective assessment of this incident in 'Bloody Biscay', can anyone tell me what this 'new material' might be and the source?