Former student Umar Farouk Abdulmutallab, who allegedly attempted to blow up US jet, had his UK visa request refused in MayTHE son of a prominent Nigerian banker, who allegedly attempted to blow up a transatlantic flight over America, was barred from returning to Britain earlier this year. Umar Farouk Abdulmutallab, 23, graduated from a university in London last year but his visa request was refused in May when he attempted to apply for a new course at a bogus college. Abdulmutallab, described as a devout Muslim, attempted to ignite an explosive device on a plane from Amsterdam to Detroit on...