The discovery (SPOILER)

Mika makes a visit to Diet lawmaker Akira Karasuma due to his personal links with the Sanctuary. When she decides to use the Dominator on him, she figured out the Sibyl System made an android body in order for it to go around in public without raising suspicion. The Karasuma droid confirms her suspicions and justifies killing anyone about the Sanctuary raising nuclear material out of the ground since it doesn't want hostile states/non-state actors to get their hands on it.

Example of:
Wham Episode