Yes, especially when you consider that "terror" is an emotion. How can one wage war on an emotion? I mean, I don't think anyone has to be fought into a position of not wanting to feel terror; that's a pretty universal "no-no". (When was the last time you heard someone say, "I love being terrified"?)
But the way in which this particular "war" has been waged has actually been the cause of much of the "terror" that people feel. The past administration used it as a way to scare us into giving up rights, and to engage in an illegal, unnecessary war. Not too funny, eh?