Personally, and this is pure speculation, I think we got him back in october, told the world he was dead and then got the info out of him. After foiling some plans and picking up some other terrorists which he led us to, we are finally are letting the world know we have him because it's safe to do so and it may scare some more rats out of the sewers.
Either way it's good we got that prick (I wanted to use some other profanity but caught myself).