Julian Assange appeared, as we told you before, by Skype at SXSW over the weekend. Set against a green-screened Wikileaks logo, wearing a scarf straight from the Doctor Who wardrobe department and an actually respectable showing of facial hair, he gave his usual kind of speech. That's to say, one grounded in a lot of really honorable principles about disclosure and democracy and openness and how constant surveillance undermines all of those things.