Nigerian underwear bomber to get life sentence Feb 16 03:04 PM US/Eastern DETROIT (AP) - A Detroit federal judge is refusing to set aside a federal law that requires a mandatory life sentence for a Nigerian who pleaded guilty to trying to blow up an international flight bound for Detroit on Christmas 2009. U.S. District Judge Nancy Edmunds made her decision as the sentencing hearing began Thursday for Umar Farouk Abdulmutallab (OO'-mahr fah-ROOK' ahb-DOOL'-moo-TAH'-lahb). He tried to bring down Northwest Airlines Flight 253 with a bomb in his underwear. It failed and he was badly burned. Abdulmutallab's attorney claims a life sentence when there was no death or serious injury to passengers is unconstitutional. Separately, the judge says she'll allow the government to show an FBI video demonstrating the power of the explosive chemical possessed by Abdulmutallab.