Which is it Pakistan?

Currently on Drudge there are 2 headlines near to, but not quite adjacent to each other ...

Pakistan: It was a 'joint operation'

and

Pakistan condemns 'unauthorized unilateral action' ...

Which is it Pakistan?  It's safe to say the latter headline is closer to the truth, in that surely Pakistan was not informed of the raid.

Was bin Laden hiding under there noses or under their protection?  Again, the latter is infinitely more likely.

Obama deserves at least some credit for the boldness and secrecy of the operation.  It is clear that informing Pakistan of our military operations on Pakistani soil inherently compromises the operation.  It's also clear now, thankfully, that the US is willing to operate in Pakistan without Islamabad's consent or knowledge.  

So, this begs the question:
If we can't trust Pakistan to tell us what it knows,and we can't trust Pakistan to tell it what we know ...
... then what value do we get from the tens of billions of dollars that the US provides to Pakistan in the form of foreign aid?

According to this site, 

"between 2002-2010, Pakistan received approximately 18 billion in military and economic aid from the United States. In February 2010, the Obama administration requested an additional 3 billion in aid, for a total of 20.7 billion."

Why?