**FILE** Passengers on Northwest Airlines Flight 253 were evacuated after arriving at Detroit Metropolitan Airport from Amsterdam on Christmas Day in 2009. Officials accused a Nigerian aboard, identified as Umar Farouk Abdulmutallab, of trying to ignite an explosive device in his underwear. Northwest merged with Delta Air Lines in 2008. (Associated Press)
Umar Farouk Abdulmutallab (U.S. Marshals Service via Associated Press)
Umar Farouk Abdulmutallab is representing himself in a federal court in Detroit on charges that he tried to bring down an airliner with 290 aboard. (U.S. Marshals Service)
In this courtroom drawing, Umar Farouk Abdulmutallab (left) appears in federal court in Detroit on Oct. 4, 2011, with defense lawyer Anthony Chambers. Abdulmutallab is on trial for attempting to bring down a jetliner with a bomb in his underwear on Christmas 2009. (Associated Press)
**FILE** Cars are seen parked outside Murtala Mohammed airport in Lagos, Nigeria, on Dec. 26, 2009. Northwest Airlines passenger Umar Farouk Abdulmutallab, a 23-year-old Nigerian claiming to be acting on orders from al Qaeda, set off an explosive device on a Christmas Day flight in a failed terrorist attack on the plane as it was landing in Detroit. The suspect boarded in Nigeria and went through Amsterdam en route to Detroit.
**FILE** Passengers on Northwest Airlines Flight 253 were evacuated after arriving at Detroit Metropolitan Airport from Amsterdam on Christmas Day in 2009. Officials accused a Nigerian aboard, identified as Umar Farouk Abdulmutallab, of trying to ignite an explosive device in his underwear. Northwest merged with Delta Air Lines in 2008. (Associated Press)
** FILE ** The Obama administration has called Umar Farouk Abdulmutallab's failed plan to blow up a Dec. 25 flight "an attempted act of terrorism." (AP Photo)
This syringe detonator was used in a failed plot to blow up an airliner over Detroit on Christmas Day. Umar Farouk Abdulmutallab reportedly told his FBI interrogators that "this is just the beginning." (ABC News)
SUSPECT: Umar Farouk Abdulmutallab made statements to the FBI that mirrored al Qaeda's claims, an intelligence official says. (U.S. Marshals Service via Associated Press)
