No espionage, just the way surveillance works. Google maps isn’t real time. A lot of intel for specific areas of interest can be accumulated by real time mapping and seeing changes in progress. That’s how the US finds the secret underground facilities in areas like Iran and North Korea by using constant surveillance.Why bother with the espionage? Google maps has sat images for a vast majority of the US and in most cities/towns has a street view of the area. Hell, when bored I will look up cities and just spend some time going through street view. Its like visiting but still able to have my firearm on me.