Iranian nuclear scientist Shahram Amiri is on his way home to the United States, ending a long, strange intelligence drama. The US says he defected, but Amiri says the CIA abducted him and the Iranian government says they can prove it. Amiri has changed his story a few days, but now appears to be sticking with abduction. Laura Rozen, who writes the ‘On Foreign Policy' blog for Politico, picks up the story.