 A former FBI agent, Robert Levinson, has been missing in Iran since he disappeared in March 2007.During her detention at Evin Prison, Esfandiari was allowed to make one- or two-minute telephone calls to her mother most evenings, but was not permitted to have contact with her other family members.On May 15, 2007, Iranian Judiciary spokesman Ali Reza Jamshidi confirmed that Esfandiari was being investigated for crimes against national security and that her case was being handled by the Intelligence Ministry.