FBI agent 'fled to Syria and married rapper-turned-terrorist she had been tasked with investigating'
An FBI translator married an IS operative she was assigned to investigate, CNN reports.
The news agency has discovered that an agent with high security clearance, Daniella Greene, travelled to Syria to meet with the well-known terrorist and warned him that he was being investigated.
The agent married the operative - who is a rapper turned ISIS pitchman - in 2014.
He is a recruiter and a fighter with a heavy online presence. He has appeared in propaganda videos including one in which he was holding a severed human head.
Weeks after the marriage took place Greene fled back to the US and was immediately arrested.
She had sent emails home lamenting her mistake and fled Syria using her own means.
She spent two years in prison after she pleaded guilty to making false statements involving international terrorism.
Court records relating to her case have recently been unsealed to allow public access to the circumstances surrounding the case.
Security experts have suggested that her entrance to Syria may have required the sanction of top ISIS leaders due to the fact that she was a serving FBI agent at the time she travelled.
She entered the country after buying a one way ticket to Istanbul in Turkey.
The translator was still married to a US soldier at the time she travelled to Syria.
The operative she married is known as Abu Talha al-Almani but was previously known as Deso Dogg a German rapper. His real name is Denis Cuspert.
Ms Greene, who was released from prison last August, has declined to comment on the story, citing danger to her family.
The FBI has said that it has taken steps to reduce security vulnerabilities after the case.
Talha al-Almani is believed to be still at large and was declared a Specially Designated Global Terrorist in 2015 by the US.