Rendition is such a red herring anyway. Thanks to his notoriety and paranoia, and the paranoia of his followers, Assange is probably the one person on earth who's the least likely to be extrajudicially kidnapped. The whole point of rendition is that it's a covert operation. That, and the fact that you don't really need to go through any kind of channels for it--if the US really wanted to rendition Assange, they could just grab him off the streets, and if anything, putting him in British or Swedish custody would only interfere with that.
