I found and had declassified a formerly TOP SECRET report that lays out, in detail, what the Luftwaffe Signal Intelligence Service (specifically W-Leit Südost, Referat C, and Chi-Stelle) knew in advance of the TIDAL WAVE mission, and what they knew and did on the day of the actual mission.
It turns out they knew quite a lot–and it didn’t require spies in Cairo (although they certainly existed) or a “stay behind” team hiding in a wadi outside Benghazi, as speculated in certain publications. What the Luftwaffe command structure did with the information is yet another story.
This is a story with heroes and villains.
It’s fascinating stuff, so stay tuned for the release of my documentary.