According to the National Security Agency, "It appears the British analysts who had decrypted the message missed the significance of this particular message at the time. No doubt this happened because the message itself contained only the identifying letters for the death camps followed by the numerical totals. The only clue would have been the reference to Operation Reinhard, the meaning of which – the plan to eliminate Polish Jewry that was named after the assassinated SS General Reinhard Heydrich – also probably was unknown at the time to the codebreakers at Bletchley."