NEW : The mole studied Arabic in Yemen to draw al Qaeda 's attention , analyst says . CNN has previously reported that al-Asiri has been involved in training both bombmakers and suicide bombers . NEW : A Yemeni man who was a member of the terrorist group Al - Qaeda, is seen at his home in Sanaa, Yemen, on April 25, 2009. The man was a British citizen of Saudi descent who had fallen in with jihadist sympathizers . Al Qaeda 's Yemeni branch has `` a whole outfit '' targeting U.S. , source says .
NEW : The mole studied Arabic in Yemen to draw al Qaeda 's attention , analyst says . NEW : A Yemeni man who was a member of the terrorist group Al - Qaeda, is seen at his home in Sanaa, Yemen, on April 25, 2009. The man was a British citizen of Saudi descent who had fallen in with jihadist sympathizers . Al Qaeda 's Yemeni branch has `` a whole outfit '' targeting U.S. , source says .