Before everybody gets all crazy, let’s look at the Espionage statute.
18 U.S.C. Sec 793 states,
(c) Whoever, for the purpose aforesaid, receives or obtains or agrees or attempts to receive or obtain from any person, or from any source whatever, any document, writing, code book, signal book, sketch, photograph, photographic negative, blueprint, plan, map, model, instrument, appliance, or note, of anything connected with the national defense, knowing or having reason to believe, at the time he receives or obtains, or agrees or attempts to receive or obtain it, that it has been or will be obtained, taken, made, or disposed of by any person contrary to the provisions of this chapter; [...] Shall be imprisoned not more than 10 years.
Nothing about citizenship.
Nothing about residence.
Nothing about in the US or offshore.
“18 U.S.C. Sec 793 states,”
The above legal stature was passed in the United States, it has legal validity only where the US legal jurisdiction is found.
Chinese espionage laws apply to the legal jurisdiction in China. They have no legal validity in the USA.
You cannot extradite Putin, former KGB, for espionage against the USA.
Assange is an Australian citizen and has never set foot in any USA legal jurisdiction in his life.
USA legal jurisdiction is not global.