It says that we're part predators, part prey animals and as such are more interested in defending our territory and possibly gaining some new territory than we

It says that we're part predators, part prey animals and as such are more interested in defending our territory and possibly gaining some new territory than we are in gazing at the skies for some purpose which neither the predator nor the prey would recognise. Hard science is a new thing in evolutionary terms, the purpose for which those KH satellites were launched is as old as our species.