I was moreso pointing out the obvious and quick solution. On a more legal situation, I suspect that said individual could be taken down as a foreign agent, most of the laws around that shit from the cold war are still on the books. The fact of the matter is youre are coming at this from the perspective that we dont have laws around what foreign agents are allowed to do, Americans can certainly be foreign agents just ask my 2x great grandfather who was snitching on the Bund who were almost all American born.