I'm sure there are difficulties and complications which make the life of a terrorist far from simple, fortunately. But there's nothing insuperable in that checklist Teribus came up with. The basic technology and skills involved in that kind of thing are in truth pretty basic, and level of resources needed are very low compared to what is needed to keep a conventional armed force operational.

The most important element in any terrorist campaign is personnel. The most important element in any counter-terrorist campaign is finding ways of cutting off the supply of volunteers. The most disastrous thing which a counter-terrorist campaign can do is to behave in a way that increases the supply and motivation of volunteers.

The bottom line is, anyone who thinks that, by depriving terrorists of the backing of some friendly government, you can guarantee to shut them down, is being extremely optimistic.