Did the flier have a passport when he purchased his round trip tickets from Lagos to Amsterdam to Detroit for cash?
Did the flier have a passport to board the plane in Lagos on Christmas Eve, bound for Amsterdam?
By the way, most of the "Lagos to Detroit" tickets rout via Atlanta and not Amsterdam. The thing I heard was Holland does not permit US Armed Air Marshals to board US bound planes from Amsterdam, making a Marshal free rout into the US. Not cool, if true.
Abdul Mutallab had purchased ‘one way tickets’ because he wanted to martyr himself by detonating his PETN bomb in his undies aboard Flight 253.