Based on the premise 'He told us that by the time he arrived, the order had already been passed down NORAD's chain of command.', does it logically lead to the hypothesis 'He told us that the order had been sent down from NORAD to shoot down all planes.'
He told us that by the time he arrived, the order had already been passed down NORAD's chain of command.###He told us that the order had been sent down from NORAD to shoot down all planes.