The mantra of that moment was "the enemy is dead".
It was momentary.
A war economy always needs a war. The big secret in Washington is that American capitalism needs Pentagon socialism to survive.
The attack on the Twin Towers became a justification for a vast expansion of military activity without end. Dick Cheney predicted this new war would be a long one, estimating it could last 50 years.
Ten years of that 50 have elapsed with no real end in sight.