DETROIT — A Nigerian man pleaded not guilty Friday to charges that he tried to blow up a packed U.S. Detroit-bound airliner on Christmas Day.
Umar Farouk Abdulmutallab said little during a federal court hearing that lasted less than five minutes. The 23-year-old, who wore a white T-shirt, tennis shoes and light olive pants, said "yes" in English when asked if understood the charges against him.
