Immigration: Nuclear Secrets

Case In Point Dept: The most recent case in point is the Iranian physicist who U.S. officials insist voluntarily bailed out on his country and took what appeared to be nuclear secrets with him, according to Montreal Gazette. Whichever, it's an embarrassing story of duelling videotapes all by him and now his "escape." And it's not the first time this kind of thing has happened and what do we call it when a defector goes back? Is that a de-defector? It can usually be called defective intelligence. Now he has gone back -contending that he had been kidnapped in Saudi Arabia, while the Americans insist he is motivated by fears for family that he left behind. As reported in the news.
@t defector, saudi arabia