what do they think it means? >> reporter: it means the malaysian officials have kept up this inaccuracy for three weeks when they knew it was wrong and that further undermines people's confidence in their investigation. and they no longer say those word were spoken by the first officer nor do they say they were spoken by the chief pilot, shah *. or hamid *. .the tower respond. then hamid supposedly says, all right, good night. malaysian authorities have given us no explanation for this discrepancy. though government officials have told reporters they believe