I think maybe "Signal Harrison Aerofloting to Moscow" may be an acronym for "SHAM". What exactly is a "sham" is not clear. I think Cryptome may be running an obfuscation operation for Wikileaks, to help confuse authorities about what is really going on with Assange. I don't think they would be doing this if he was still in the embassy, or if he was dead, or if he had been arrested. In the last two instances, I think passwords would have been released to unlock the encrypted insurance files. So I think he has slipped away somewhere, but it is not for us to know any further details yet.