I think one of the main reasons is that they, AQ, are 'outlaws' they operate outside the laws of places they operate from and most of their operational bases are in places which are too weak to locally deal with AQ in a more traditional method. So because they are outside the law construct (of extradition, reach of local enforcement, local complicity, etc.), they, almost by necessity require this approach -which some people question and some approve of.
It's an an answer to the question, how does one deal with an entity which does not subject itself to a set of groundrules one expects/operates in. In this case, you meet them half way (in vernacular terms, that's a good deal) for the offender (since their, AQ's, whole existence is predicated on vanquishing Kafirs).
The alternatives are you meet them in their terms adopting their groundrules for dealing with you (this is a strong position to work from), another is you deal with them as you deal with other entities with whom you have structured relationships (this is a weak position to work from) since they would not likely reciprocate.
A tax evader, you attempt to extradite, if you have agreements, if not, you try to get them when they make a mistake (fly into a place with a treaty). But when a nation is concerned with national security, there is less pussyfooting and more serious action, where possible. (i.e if AQ were based in China, the approach would require some rethinking or at least some negotiation with the host country.)
It's an an answer to the question, how does one deal with an entity which does not subject itself to a set of groundrules one expects/operates in. In this case, you meet them half way (in vernacular terms, that's a good deal) for the offender (since their, AQ's, whole existence is predicated on vanquishing Kafirs).
The alternatives are you meet them in their terms adopting their groundrules for dealing with you (this is a strong position to work from), another is you deal with them as you deal with other entities with whom you have structured relationships (this is a weak position to work from) since they would not likely reciprocate.
A tax evader, you attempt to extradite, if you have agreements, if not, you try to get them when they make a mistake (fly into a place with a treaty). But when a nation is concerned with national security, there is less pussyfooting and more serious action, where possible. (i.e if AQ were based in China, the approach would require some rethinking or at least some negotiation with the host country.)