In its attack against Wikileaks and, beyond that, the free Internet, the Empire’s two next steps are predictable:
a) Arrests of activists
b) Pressure on search engines

I don’t think that the Empire will attempt to shut down, or even openly pressure, the various corporate media outlets which have been, so far, releasing the documents (El Pais, The Guardian, the NYT, etc.), but they are not the biggest prize in this struggle since, fundamentally, the corporate media is not, and cannot, be a free media.  Joe Lieberman can live with the corporate media out there, but what he cannot accept is that any one person would self-appoint himself/herself as ‘reporter”, “whistleblower” or “leaker” and simply release information, fact or opinion.