Well of course they did. This is one of those times where it's easy to see the real law of the land is whatever the government feels like doing. It's all a dog and pony show. What I find surprising is that Snowden didn't know that. He's not going to win a game where his competition makes up the rules as they go along.
Huh? He literally signed a contract saying he would forfeit to the US government any money from books containing classified material - and the judge is holding him to it. It’s right there in black and white.
Perhaps the US government needs to gets its priorities straight, and investigate the leaked information itself instead, since the impact of that on the people is much more harmful.