Canadian Press 
Thursday, Dec 31st, 2009
Comment: The fact that Abdulmutallab’s visa had expired completely contradicts claims by Dutch officials, reported by CBS News, that the bomber “was carrying a valid Nigerian passport and U.S. visa”.
SAN’A, Yemen — The Nigerian suspected in the attempted attack on a U.S. airliner had stayed on in Yemen illegally after his visa expired three months ago and should have been stopped by authorities from leaving the country, Yemeni security officials said Thursday.
Umar Farouk Abdulmutallab spent time in Yemen on two occasions before the attempted Christmas Day attack on a Detroit-bound Northwest Airlines flight.
Yemeni officials said Abdulmutallab’s student visa for Yemen, where he studied Arabic at a local language institute, was valid from Aug. 4 to Sept. 21.
After his visa expired, the 23-year-old stayed on in Yemen until the first week in December, they said, but his whereabouts in the country is unknown.