I can imagine the conversations went something like this...

Pakistani: Hey, you know the way you'll be leaving out everything that doesn't tie in with the offical fiction...?

American: Er... yeah...

P: Well, we'd really appreciate it if you could leave us out too, cos y'know, people might start asking questions about the SIS and CIA relations and well, that wouldn't look good for either of us would it...?

A: Ummmm....

P: Ok ok, we'll give you MONEY! How does 10 grand wired to your account by the cheif of SIS sound?

A: DEAL!