is that of any American in its history, this guy's speech most closely resembles Lincoln's. There's a simplicity and a poetry to it.
"The price for my speech was my passport, but I would pay it again: I will not be the one to ignore criminality for the sake of political comfort. I would rather be without a state than without a voice."
But perhaps the closest thing I can think of in history to Snowden's actions is something that has nothing to do with the Nazis.
It is Martin Luther's Ninety-Five Theses about the abuse and manipulations of the Catholic church and how this abuse was contrary to the original doctrines of the gospel.
Disloyalty to an incumbent power is not the same thing as wickedness. These folks should study history if they want to hear the rest of the tale. The firm statement of a principle can change the world.