The Nigerian man accused of trying to blow up a US flight bound for Detroit on Christmas Day allegedly got his orders from an al-Qaeda group in Yemen.<br /><br />Umar Farouk Abdulmutallab was studying Arabic there, just a few months ago.<br /><br />Al Jazeera visited his school in Sanaa, where his teacher describes him as a gentleman who did not raise any suspicions.<br /><br />Omar al-Saleh reports.
