DAILY MAIL – The notorious underwear bomber’s plot in 2009 to blow up a plane on Christmas Day failed because the explosives became ‘degraded’ after he wore the same pair of underpants for two weeks, according to a U.S. official. Nigerian Umar Farouk Abdulmutallab was on a suicide mission when he attempted to detonate a bomb in his underpants as the plane, en route from Amsterdam, approached Detroit Continue