Snowden: You’ve heard of the Nuremberg Trials, Trev? They weren’t that long ago.
Trevor: Yeah. And we hung the Nazi big shots, didn’t we? So?
Snowden: That was the first trial. The next one was guards, lawyers, policemen, judges. People who were just following orders. That’s how we got the Nuremberg principles, which the U.N. made into international law … in case ordinary jobs become criminal again.

From the movie Snowden