My understanding is that the man is not a US citizen, and that he has never stepped foot on US soil. Considering those two facts, how can he be charged with espionage (at least within the US) at all? It was pretty clear from the beginning that the Swedish charges were horseshit and just fabricated to attempt to extradite him through a friendly government, and sure enough now that those have been thrown to the wayside they're just trying a more direct approach.