My gut guess is that OBL and Zawahiri are together.
I wonder about OBL.
I figure he's still alive, but why doesn't he want us to see him? Has he changed his appearance? Or, is he so ill that he's yellow/gray now? Or, did he make it into the US like he promised, to die in the belly of the eagle?
Unless UBL is on his way to the belly of the eagle..
They may be together, but I wonder if that would be wise. Seems like they would be wary of a 'decapitation' strike, like our gov't officials are.