Ahmadinejad has been missing since 2007 . His family says he was working as a private investigator in U.S. when he disappeared . His wife hopes to ask Robert Levinson personally for help . The Iranian president is attending CNN .
Robert Levinson has been missing since 2007 . His family says he was working as a private investigator in Iran when he disappeared . His wife hopes to ask Ahmadinejad personally for help . The Iranian president is attending U.N. General Assembly .