I see your point. But my reaction was prompted by the OP’s specific request for unbiased and the CIA doesn’t immediately spring to mind in conjunction with that word :)
But obviously they do try to select the cream of the crop and have a lot of resources so I wouldn’t discount their info out of hand. But I would always have the need to take it with a grain of salt in the back of my skeptical mind and realize that their info is filtered through an American mindset.
(and the BBC is filtered through a more European mindset)
I think many points of view are valuable and somewhere in the middle lies the reality of the situation.
Don’t get me wrong. I’m US born, proud to be, and wouldn’t want to ever leave. But I’m just not under the illusion that our govt. is an infallible bastion of truth. So color me skeptical about ANY govt. agency :)