Umar Farouk Abdulmutallab

Umar Farouk Abdulmutallab (Arabic: عمر فاروق عبد المطلب; also known as Umar Abdul Mutallab and Omar Farooq al-Nigeri; born 22 December 1986) popularly referred to as the "Underwear Bomber" or "Christmas Bomber", is a Nigerian terrorist who attempted to detonate plastic explosives hidden in his underwear while on board Northwest Airlines Flight 253, en route from Amsterdam to Detroit, Michigan, U.S., on 25 December 2009. Al-Qaeda in the Arabian Peninsula (AQAP) claimed to have organised the attack with Abdulmutallab; they said they supplied him with the bomb and trained him.

Source: Wikipedia — Umar Farouk Abdulmutallab (CC BY-SA 4.0)