A lot of people do. If the Germans had someone who knew what he was doing directing the German side of the Battle of Britain, the Germans would have continued bombing the military infrastructure to include the radar towers. Sooner or later they would have found out how important the towers were.
Sooner or later they would have found out how important the towers were.
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The problem for the Germans was that by the time they found out about the RADAR towers, the Allies had ENIGMA....which, by the way, was turned over by the Poles to the French who turned it over to the Brits. Probably the best kept secret in world history was the Germans not knowing we had ENIGMA.