Better intelligence has made an attack on U.S. or Europe more difficult . Comment: Al Qaeda in the Arabian Peninsula may be a greater threat now , some say . Salafist groups may want to take advantage of instability from recent uprisings .
Better intelligence has made an attack on U.S. or Europe more difficult . Sabotaging Saudi and Gulf oilfields would fit with al Qaeda 's core goals . Al Qaeda in the Arabian Peninsula may be a greater threat now , some say . Salafist groups may want to take advantage of instability from recent uprisings .