It&#x27;s not that simple.  Terrorism or violence can happen anywhere and not be precipitated by any externalities.<p>People can conspire, people can be crazy, or unhinged.  Columbine, for example.  And even if we accept that terrorism is a reaction, they exist in many countries and would inflict more harm if they could.  Terrorism is not a thing which only threatens the US, it exists in Europe, Africa, Asia, the middle east, etc.<p>But yes people will have to come to terms with how to deal with the issue of privacy (secrecy) vs openness (accessibility)  How it&#x27;s managed will change over time, surely.