Shahram Amiri is at the Pakistani embassy in Washington D.C. Unless he's not. The missing Iranian nuclear scientist is no stranger to intrigue and indecision: Last month we covered dueling YouTube videos in which two men, both claiming to be Amiri, say that either he was being held against his will in the United States or was studying freely and happily here. Today his case took more strange turns, as government officials in Pakistan claimed that Amiri is currently at their embassy in Washington, awaiting a return trip to Iran.