"An awful symbiosis emerged between the main actors of the Cold War, a rhythm of escalation between the Pentagon and the Soviet strategic rocket forces, and along secret war between the KGB and the CIA which helped make the spy thriller into the distinctive cultural genre of the period. The two sides became locked into the roles of hero and villain in one another's morality play, as two distinct theories of social and political organisation believed they were grappling for nothing less than the inheritance of the planet."
January 1, 1970
https://en.wikiquote.org/wiki/Espionage