Is there a clear contradiction between 'The threat of terrorists hijacking commercial airliners within the United States-and using them as guided missiles-was not recognized by NORAD before 9/11.' and 'NORAD ignored evidence that terrorists intended to use airliners as weapons.'
The threat of terrorists hijacking commercial airliners within the United States-and using them as guided missiles-was not recognized by NORAD before 9/11.###NORAD ignored evidence that terrorists intended to use airliners as weapons.