Her interrogator confronts her about a letter the Iraqi police say they uncovered on the raid on her home. The letter is addressed to "Umm Omar" from the local al Qaeda emir Abu Dawood.

"Good news for you my sister, Umm Omar," it says. "Your sister Fatima became a martyr after an operation in Mafraq district, and God enabled her to carry out this blessed operation.

"Know that she did not hesitate in confronting the infidels and tyranny. We pray to God that you follow her in God's course. We inform you, Umm Omar, that this letter is very confidential."

Umm Omar shrugs it off. "I cannot read, so why would he send this to me?"

She goes by the name of Umm Omar. In the Middle East, Umm -- means mother -- followed by the eldest son's name, in her case Omar. She says the Umm Omar reference could be just about any woman in Iraq.

Her profile fits that of other women who have carried out suicide attacks.