“The legitimacy of these [means] has been established even if [their use] results in the killing of a number of Muslims even if it is known that they are likely to be there at the time, for whatever reason… Admittedly, the killing of a number of Muslims whom it is forbidden to kill is undoubtedly a grave evil; however, it is permissible to commit this evil – indeed, it is even required – in order to ward off a greater evil, namely, the evil of suspending jihad.” David Aaron, In Their Own Words: Voices of Jihad (Santa Monica: RAND Corporation, 2008), 228.