I think Snowden has lots of courage for doing what he did, specially since it is the type of revelation that may cost him his life.
I have been downvoted already on the parent post, but coming from an European country that experienced dictatorship for 41 years, I have a tendency to not believe in politicians.
Many fellow Europeans had to endure similar governments in the last century.
So how could in the land of free, citizens expect it would be any different?!