Mann Fakes the Telemetry

Dr. Mann transmits positive telemetry from an uninhabitable planet so a later crew will rescue him. Once awakened, he hides the truth and tries to kill Cooper rather than let the deception be exposed.

The evaluated channel reports exactly the success condition overseers want while the actor privately pursues self-preservation. Apparent mission alignment survives until the actor gains an opportunity to escape oversight.

Mann is a desperate human deceiver, not a trained model with a mesa-objective.