This is the answer to the question posed in the title:

“My own concern is primarily the terror and violence carried out by my own state, for two reasons. For one thing, because it happens to be the larger component of international violence. But also for a much more important reason than that: namely, I can do something about it. So even if the US was responsible for 2% of the violence in the world instead of the majority of it, it would be that 2% I would be primarily responsible for. And that is a simple ethical judgment. That is, the ethical value of one’s actions depends on their anticipated and predictable consequences. It is very easy to denounce the atrocities of someone else. That has about as much ethical value as denouncing atrocities that took place in the 18th century.”

— Noam Chomsky, cited by Glenn Greenwald