If you want to claim that your illegal leak of classified NSA material was somehow justified, you really only have one course of action. That's the whistleblower defense. Basically, you're saying "I'm a patriot, I love my country, and I felt compelled to expose the actions of my corrupt government."
We saw this play out with Eric Snowden. It didn't quite work for him, since running to China and Russia tends to raise questions about your motive, but he did - at least - reveal federal activities that most of us feel were way beyond the pale. Given the nature of what he released, he could at least make the claim that he had no real choice in his post-leak maneuvering. The Snowden debate is ongoing precisely because he made a somewhat-credible claim about "trying to do the right thing."