Robert Levinson has been missing since 2007 . ` Because the U.N. General Assembly is here , we can get the world to help us , '' Christine Levinson said . His family says he was working as a private investigator in Iran when he disappeared . The U.S. State Department said it is aware of the report and that its embassy will work with Iranian authorities to determine Levinson's status. The Iranian president is attending U.N. General Assembly .
Robert Levinson has been missing since 2007 . His family says he was working as a private investigator in Iran when he disappeared . The U.S. State Department said it is aware of the report and that its embassy will work with Iranian authorities to determine Levinson's status. The Iranian president is attending U.N. General Assembly .