Let's say a Soviet exchange student back in the '70s would go back and tell the KGB about people and places and things that he'd seen and done and been involved with. This is not really espionage there's no betrayal of trust.
As though there were a tie And obligation to posterity. We get them bear them breed and nurse: What has posterity done for us. That we lest they their rights should lose Should trust our necks to gripe of noose?
I shall endeavour still further to prosecute this inquiry an inquiry I trust not merely speculative but of sufficient moment to inspire the pleasing hope of its becoming essentially beneficial to mankind.