`` Since that day our family has been living a nightmare , '' Christine Levinson said . `` This has brought so much darkness to our lives . '' Christine Levinson released a computer-enhanced photograph showing what the family thinks Bob Levinson may look like today . The State Department has consistently denied Levinson was working for the U.S. government and has unsuccessfully pressed Tehran for information about his whereabouts . `` We reiterate our commitment to determining Mr. Levinson 's welfare and whereabouts , and reuniting him with his family , '' acting State Department spokesman Robert Wood said in a statement on Sunday . Congressional reaction in Levinson 's home state of Florida has been more pointed . `` On several diplomatic occasions when Bob Levinson 's name has been brought up to Iranian officials , the standard answer is , ` We do n't know anything about that . ' But the next thing out of the Iranian officials ' mouths are to discuss the matter of the Iranians held by the Americans in Irbil , Iraq , '' Sen. Bill Nelson , D-Florida , told reporters last month . `` You can draw your own conclusions
WASHINGTON -LRB- CNN -RRB- -- The family of a retired FBI agent who was reported missing in Iran two years ago said Monday that they remain hopeful for his return . Photos from Robert Levinson 's family show him in 2006 , left , and as he might look today . Monday marks the second anniversary of the disappearance of Robert Levinson , a father of seven children and grandfather of two . `` After two years of constantly praying for his return , we continue to anxiously await word of his whereabouts , '' said Christine Levinson , the missing man 's wife , in a statement . `` Two years -LSB- have passed -RSB- since our seven children and I last heard his voice , saw his warm , loving smile , and since we last hugged him hello or kissed him goodbye , '' she said . Tuesday will be Levinson 's 61st birthday . Levinson disappeared during a business trip to Iran 's Kish Island in 2007 . Iranian authorities have said repeatedly that they do not know what might have happened to him , but the claim is widely doubted in the United States .