You can not convince me they do not know where the plane went, with all the High tech stuff out there, they know when we fart, and who smells it. The Powers to be know where it went and for why, and if its still there.
I believe that Boeing has something on that plane that lets them know what happened to it but dont want all the possible info revealed.
For example, they did reveal something that most pilots didnt know about the plane.
I am sure there are more goodies like that that need to be kept secret.
So lets say Obama knows it is in Pakistan. And has known since the beginning.
Perhaps info coming out is being leaked to force his hand because he has been sitting on the info.
Its possible.