I think the perps mave have smartened up a tiny bit since they saw what we did in Afghanistan.
They still want to kill us, destroy our country, trash our economy (in no particular order), but their hosts don't want the payback on their soil.
Especially now that we are out of the asprin factory bombing business, and are targeting them. It's PERSONAL now...
It's as easy as pie to invent the name of a new terrorist organization, if you want a bombing to be recognized as terrorism but don't want it to be credited to your own terrorist group. Both Muslim and radical terrorists have often done that in the past fifty years. But terrorism that isn't widely recognized as terrorism does no good from their point of view.