I think that part of what he desires is to be able to make any defense that he wants. As stated in CitizenFour and again in his AMA, a defense in this case woul

I think that part of what he desires is to be able to make any defense that he wants. As stated in CitizenFour and again in his AMA, a defense in this case would be severely limited in what it could claim, because the case involves espionage, he would be unable to make a defense claiming that the actual laws are unjust, for example.