Daniel Levinson (L) shows a picture of his father, ex-FBI agent Robert Levinson, during a press conference with his mother Christine at the Swiss embassy in Tehran, December 22, 2007. The White House said Friday it was looking forward to Iran helping to locate retired FBI agent Robert Levinson, who went missing six years ago while on a trip to the Islamic Republic.
Daniel Levinson (L) shows a picture of his father, ex-FBI agent Robert Levinson, in Tehran, December 22, 2007
