Well, I am no expert, but it looks to me from the date stamps on this web page like the picture blasted all over Pakistan TV of the 'Osama' that was killed today ...
... might be a photo that was floating around the internet for the last few months!
And it appears to be photoshopped!
Here is the real Osama from about 15 years ago.
Now flip it left to right...
And compare the lower half with today's photo of the dead 'Osama'!
There are other signs of photoshop as well, such as blurred edges on the beard and an obvious difference in sharpness between the eyes and the mouth, It looks like someone took a dead body and pasted the real Obama's mouth onto it to make it look more like him.
Did Obama just fall for a dirty trick by Pakistan's ISI? Inquiring minds want to know! :)