That's a fair question. It's not the determining question. But it is a fair question.
Well, they have— beheadings with videos and pushing buttons.
So, yeah the fair question is there and so is our answer. Much better to sweat the principals and get the network than the sanitized obamaumao version of drone strikes— like the air force that never sees what it does to people on the ground. Targeted, precise and effective elimination of the networks for generations— that is what works.