While we should be killing all of the islamist fanatics we can identity (and I would not exempt the ones in places like the UK and Canada), at some point we should also begin targeting the religious schools which manufacture them.
We not only shot down Hitler's Messerschmidts and Heinkels, we laid thousands of tons of bombs on the factories where they were produced. The same principle should apply today in fighting Mohammed's mad dogs.
At this rate their own countrymen might sort them out.
Don't let Dave S hear you say that or you'll be labelled a nut like me. They have those schools here in the US too.