Ya, I’m surprised at a lack of backup systems, or emergency procedures.
I remember during some severe brush fires in the San Diego area, that a major air traffic control facility at Miramar was shut down due to the fires. The work was transferred to a facility in Palmdale, CA, so there was minimal disruption of air traffic control in the southwestern US at that time.
As the Chicago area carries so much air traffic, you would think a similar back up plan would have been in place there.
Exactly. You have just that one facility in Aurora - handling two busy airports. However, I don’t think they factored in that one employee (or more) would sabotage the facility to that end.