Assange is under great stress, I hope his appeal succeeds after this event highlights the stress he is under. If he does go to the USA, will the USA block his top secret evidence from a court airing? After all Assange has this evidence and it will have a powerful effect in showing the judges the USA does not have clean hands in this matter?
Assange can file the evidence and make it fully open to all, as he possesses it somewhere in an encrypted online form, by making the key open source.
I am not sure how good a card this is, or even if he should play it at all.
If revealed it will certainly show to the world that it conceals lies?