- The North Koreans attempted to impose a heckler's veto on speech by private citizens of the United States.
- The Sony hack had direct and very visible consequences for Americans (economic consequences, release of personal data like salaries and health information, embarrassment of people by releasing private communications).
It's entirely possible to take the position that countries are going to engage in espionage, but that there should be norms about how intelligence services behave. Right now we're all trying to figure out what those norms are.