Fair, but there have to be some diminishing returns there. If there had been two 9/11 style events in short succession, would we have gone to twice as many wars?
We didn't really go to war because of 9/11. It was a direct result of existing interventionist foreign policy. 9/11 just escalated an ongoing conflict.
You're right, though, the impact of each successive event is less.
You're right, though, the impact of each successive event is less.