Process crime. It wasn't his role to leak at the time.
Or, at least, that's the tune that will be played.
Personally, I've vacillated between thinking he's a hero and a near-traitor, leaning more in his favor over time. But, like most retail customers, my information stream is scanty and unreliable.
Had their not been illegal spying on Americans, there would be no reason
for Snowden to leak..