WorldAiman al-Zawahiri releases video, says Osama will remain threat to USAgenciesJune 8, 2011June 9, 2011 by AgenciesJune 8, 2011June 9, 2011 Cairo: Al-Qaeda leader and Osama bin Laden’s deputy Dr Aiman al-Zawahiri has issued a eulogy for the slain Qaeda chief , saying he “terrified America”...