Why did Snowden use the Nuremberg Trials example in the 2016 movie Snowden?

Question

Why is this scene the most important one in the film? What does this scene demonstrate to us about the characters? What larger themes are represented in this scene? 

Answer 1

The Nuremberg trials held people criminally responsible for conducting obscene actions at the direction of their government. Snowden believed that it was his duty to rebel against the government rather than follow orders.