FILE - In this Saturday, Feb. 18, 2006 file photo, Iranian students, fill in the papers of registration forms indicating their readiness for martyrdom, or to carry out suicide attacks, in Tehran, Iran. While most suicide bombers are men, Islamic militant groups have occasionally deployed women to carry out such attacks. Long before the rise of Islamic radicalism, women suicide bombers were used by leftist and separatist groups in the Arab and beyond. (AP Photo/Hasan Sarbakhshian, File)

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