I just think thick very hard & durable concrete would be a better choice—cameras are easy to add.
Regarding RBG -
She will serve as long as she can. Yet this medical program she is on, whatever it may be, cannot save her forever. It’s only a matter of time now. Her cancer is already spreading.
-SB
BP specifically requested that they be able to see the other side. Technology is not the same as direct visual.