Ali Mokhtare is the man Tracy says attacked her in Iraq. Now back in Washington, D.C., he is still employed by the State Department.
Although he would not talk to "20/20," Mokhtare, in a statement to investigators, denied he tried to rape Tracy but when he grabbed her and opened her shirt, admitted he went too far.
Tracy says she was isolated, denied her medical leave and told to keep what happened quiet after the incident.
Watch the full report tonight on "20/20" at 10 p.m. ET. (ABC News)