Think about it ...
One of the techniques/regulatory modes of power/knowledge that Foucault cited was the Panopticon, an architectural design put forth by Jeremy Bentham in the mid-19th Century for prisons, insane asylums, schools, hospitals, and factories.
Instead of using violent methods, such as torture, and placing prisoners in dungeons that were used for centuries in monarchial states around the world, the progressive modern democratic state needed a different sort of system to regulate its citizens.
The Panopticon offered a powerful and sophisticated internalized coercion, which was achieved through the constant observation of prisoners, each separated from the other, allowing no interaction, no communication.
This modern structure would allow guards to continually see inside each cell from their vantage point in a high central tower, unseen by the prisoners.
Constant observation acted as a control mechanism; a consciousness of constant surveillance is internalized.
... do you see what I see?