Putting spy satellites in space presented many challenges and lessons that could be directly transferred... - Building, Launching and Orbiting very sophisticat

Putting spy satellites in space presented many challenges and lessons that could be directly transferred... - Building, Launching and Orbiting very sophisticated sensitive sensors, lenses, elements and equipment into space. - Developing compression algorithms and comand and control protocols. - Calibrating readings against known ground-based objects There were, of course, self-destruction and counter-intelligence measures that probably won't be needed...