PHOTOS: Umar Farouk Abdulmutallab

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Umar Farouk Abdulmutallab

Al Qaeda in the Arabian Peninsula, or AQAP, claimed responsibility for the Northwest Airlines attack and for radicalizing Abdulmutallab, seen here in a photo released by the group.

AQAP

Umar Farouk Abdulmutallab
Al Qaeda in the Arabian Peninsula, or AQAP, claimed responsibility for the Northwest Airlines attack and for radicalizing Abdulmutallab, seen here in a photo released by the group.
AQAP
Umar Farouk Abdulmutallab
This image, exclusive to ABC News, shows Abdulmutallab's alleged weapon of choice: underwear, with a packet of the high-explosive PETN sewn into the crotch.
ABC News