What's worse is they call themselves "intelligence"
It shouldn't be that much a stretch to the imagination.
What is 1% of 10,000? 1,000.
Could 1,000 management positions feed lies to 9,000?
Would this 1,000 or 1% have to feed lies to all 9,000 or just the ones who give orders?
Think a pyramid. Each tier only having communication with the block just above and just below.
Infiltrate highest levels of authority and install your own crew.
Well, you wouldn't be entirely wrong as there would be a need for infiltration at lower levels to help ensure orders are moving forward.
Now back to the point of 1% being in administration positions.
As example 1% of 10,000 is 1,000.
Would you need absolutely all admin positions compromised or just the majority of those?
Let's say 700 out of 1,000 admins are corrupt and can pull the levers against the remaining 300, not to mention convince some of those 300 remainders to work with the 700 via lies or deception.
But what of the rest of the 1% ?
Place them in the lower blocks of the pyramid.
Intelligence gathering, data transference and collection.
Feed the higher ups with faulty data to assist the 700 corrupt admins with convincing the 300 patriots.
Cancer does not need to afflict the entire body, only critical features.