The purpose of polygraphs is to minimize the amount of bits of information one's adversaries can gain information OVERALL while maximizing the amount of bits of information one gains OVERALL—only (but not all bits are equally worthy which makes this partially an algorithmic problem).
Then they use the polygraph to obfuscate information (EG about the process of selection, knowledge gathering, and a considerable amount of other things); to have a highly spacious separate "stage" for the real sensors; and can NEVER retire it because that would reveal several bits of information.
Then they use the polygraph to obfuscate information (EG about the process of selection, knowledge gathering, and a considerable amount of other things); to have a highly spacious separate "stage" for the real sensors; and can NEVER retire it because that would reveal several bits of information.
Consequently they ALSO can never state this.