This is just an observation, but one that will not be made by the MSM, nor will they even ask the question: It is beyond doubt that the ISI had to know Osama was there, or they are completely incompetent, and did we know, too.
They are not incompetent
No one fails to notice the construction of a megamansion surrounded by 18 ft walls topped with barbed wire, within sight of an elite military training academy, and occupied by non-Paki individuals
much less the intelligence service of a quasi muslofascist police state like Pakistan