The right side of the tracks

A spacefaring crew is sent to inspect a planet that has ceased participating in the routine interstellar signaling network, provoking fears of alien takeover or hostile isolation. Officers debate motives while a semanticist proposes voluntary seclusion as an explanation. The planet replies that landing is permitted and even supplies precise descent coordinates, yet the approach reveals a puzzling contradiction: clear direct messages mixed with thousands of garbled ground-to-ground transmissions that omit the visitors. The team proceeds with the landing amid unease, torn between interpreting the silence as harmless indifference or a deliberate, dangerous concealment.