Ship him back? He knows a lot about secure IT systems in the USA. If they are smart, they will keep him around to advise their own signals intelligence / hack

Ship him back? He knows a lot about secure IT systems in the USA. If they are smart, they will keep him around to advise their own signals intelligence / hacker people on how to penetrate US systems. Maybe feed him some propaganda, help to push him a bit further over the edge (this is a guy who was at one time a big believer in the NSA, after all).