If/When Julian is extradited he will be put on trial in Alexandria, Virginia, where he stands no chance of a fair trial. It is where US intelligence agencies are headquartered. The court complex is 15 miles from CIA headquarters. The state is populated by employees of the very sector whose abuses and crimes Julian exposed.
The Espionage Act prevents Julian from arguing why he published what he published, what he exposed, and the fact it didn’t result in any physical harm.