afghan-pakistan area where the al qaeda core and senior leadership reside, i would say that the al qaeda and arabian peninsula is the most active operational franchise right now of al qaeda and that this is one that deserves a lot of our attention. >> shepard: the most operational. yemen became a key focus for u.s. counter terrorism officials after last year's christmas day attack and now this. president obama says yemen's president has promised full cooperation in the investigation. judith miller is with us now. fox news contributor, pults prize winning journalist with great contacts over there. what are you learning tonight? >> well, shep, we believe that these things that are being described as explosive devices with now being looked at by bomb specialists in london and then the uae. and that they are very good cooperation, obviously, between the u.k. and the u.s. as also between the uae and the u.s. so we should be knowing more about these devices and what was