' Twitter feed went abuzz with info about a "Pentagon murder cover-up" and then suddenly became silent for hours. A blogger who goes by the alias "morgue" pointed this out, fearing the Pentagon might be trying to put pressure on them or shut them down.

We previously reported that the Pentagon placed WikiLeaks, the site that lets anonymous tipsters post sensitive documents online, on a list of potential threats to military operations. We thought that was less scary that it might sound because the Pentagon puts out plenty of reports listing all sorts of potential threats, and Pentagon spokespeople played down the report. In the report, the Pentagon even speculated that WikiLeaks might be a CIA project.

The Twitter stream went live again, saying "we're fine, and will issue a suitable riposte shortly" -- the word "riposte" implying that somebody has, indeed, been trying to mess with WikiLeaks.

Check out the scary tweets that WikiLeaks sent out before going eerily silent >