The voices of disent, of the men who actually fought in WW2, and did not view it as an event to be glamorized were ignored and replaced by hollywood directors and actors
The attacks of 9/11 filled a vacuum left by the apathy for politics and the grandoise of WW2 in pop culture inflamed the minds of the nation to view a small band of militants as a looming threat, the precursor to the next great war
The lack of political discourse and branding of anyone that is against the war as being against the soldier led to an atmosphere where the rightness of our cause was rarely brought in to question