Her two other children had died, she said.
Muthana, who now has an 18-month-old son, left Alabama four years ago at the age of 19.
Have they forgotten Patty Hearst (the American heiress who was kidnapped by terrorists but then committed an armed robbery for them) or have they no awareness of the power of ISIL's fake news and propaganda on impressionable teenagers.
Begum is a flawless illustration of the complexities involved in repatriated foreign fighters, especially Western women foreign fighters, and having them tried in their home countries. Whatever untainted information and evidence obtained on foreign fighters is likely to be through domestic or foreign intelligence agencies and there are restrictions on the disclosure of that information in an open court. United Kingdom officials are reportedly pushing to strip Begum of her citizenship.
The Justice Department did not comment on whether she would be extradited or prosecuted. It seems as if everyone who was caught in the last square half kilometre of the caliphate was either a cook, driver, or jihadi bride. And so while their journeys began continents apart, their tales now have them intertwined: both exiled into remote Syrian camps, carrying young children and begging their nations to take them back. Yet, in arguing her case, it is also notable how she frames her situation.
"I hope America doesn't think I'm a threat to them and I hope they can accept me", she told ABC. Muthana can stay where she is while they do so. Aqsa's social media content was being monitored by the security services and Ms Begum sent her a message.
Like Aqsa Mahmood, Shamima Begum was a prolific user of Twitter, in contact with known radicals and terrorists.
We'll leave it to attorneys and the courts to sort out. The resources required to keep surveillance on her and others like her would be substantial and costly.
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But if she does end up returning to the U.S., it may not be on her own terms.
Shilby also said she wants to become a voice against the Islamic State and help de-radicalize other Americans.
ISIS's so-called caliphate spanned worldwide borders - and so does this challenge. Women, particularly mothers, are viewed as inherently less threatening.
The girls later crossed the border into Syria.
Her family's lawyer had clashed with Madeley earlier in the show after the lawyer compared Begum to a First World War veteran.
I don't regret it because it's changed me as a person. It's made me stronger, tougher.
In many ways, their stories started so differently. Even though ISIS is a strictly patriarchal and violently puritanical group that committed many well-documented atrocities against women, they nevertheless expanded the role of women in jihad in a myriad of ways.
One thing is certain: a softer approach must be taken with ISIS children, many of whom were born in captivity and witnessed atrocities but all of whom are blameless. You don't have to be Muslim or Christian or Jewish to know that violence is wrong. Motherhood changed me. Seeing friends, children and the men I married dying changed me.