A U.K. woman who as a teenager ran away to join the Islamic State group lost a legal challenge Friday aimed at restoring her citizenship, which was revoked on national security grounds. Shamima Begum, one of three east London schoolgirls who traveled to Syria in 2015, resurfaced at a refugee camp in Syria last year and told reporters she wanted to come home. Former Home Secretary Sajid Javid revoked her citizenship, but she challenged the decision before the Special Immigration Appeals Commission.