Cave Brown also asserts in Bodyguard of Lies that the 'Long Leg' route of the 30/31 March 1944 Nuremburg raid was leaked to the Germans to authenticate an agent. This, in his definative book on the Nuremberg raid, Martin Middlebrook refutes, using such sources as information from Harris. One is left with the impression that Bodyguard of Lies is not a reliable source of information.
A Most Secret War is a truly fascinating book. If anybody reading this thread has yet to read it ... do so NOW.