Julian Assange leaked the DNC emails on behalf of Russian intelligence.
And even the guy who turned out to be Deep Throat admitted he did what he did out of pure spite over failure to earn recognition for his role in the crime.
Journalists report on leaks from intelligence all the time, to the point that the "Intelligence sources say"-phrase is becoming a meme of US "news".
You can't open CNN or MSNBC without seeing some FBI or CIA head telling you what they want you to think.
Why something is being leaked is relevant, but it shouldn't be a reason to ignore the truth or attack the journalist.
Cable news hire experts to give expert opinions. Not to divulge state secrets for personal gain.
Well, except Fox. Fox has Oliver North.