Benazir Bhutto, BBC censorship and the Osama Bin Laden "assassination"

In 2007 Sir David Frost interviewed Benazir Bhutto prior to her death. In this interview she stated clearly that Omar Sheikh was the man that had killed Osama Bin Laden. In light of recent events further discussion of this matter is in order

I was actually watching this interview live.
The BBC selectively altered the video when they put it on their site.
So many conflicting reports surround the recent alleged assassination. He had a gun, he used a woman as a human shield etc etc which were all later contradicted. Its all a bit suspect really and such a coincidence that Obama is flagging badly in the polls when suddenly...
Make up your own mind. but watch the video and ask yourself a few questions.

(1) Why did the BBC feel it necessary to edit the piece in this way?
(2) Why did Frost not pursue this point ?
(3) How convenient and politically useful is this assassination event politically right now to Obama

(the original bit about Bin Laden that the BBC removed can be seen from about 5:00 onwards. )