You'd be a fool to dismiss terrorism as just a "minor" threat.
Um, terrorism *is* a minor threat. I'm not saying we should do nothing about it, but I can't help but think we're going about it the wrong way.
There is a fundamental difference between declaring war on Japan in 1941 and war on terrorism in 2001. In WWII, we knew just where our enemies were. Here we do not. In WWII we were fighting a centralized power, and when they surrendered, the war was over. The idea of terrorism surrendering is nuts, since terrorism is a concept, not a country.
So, how are we going to know when this war is over? Will it ever be over? If not, is our society going to live in a permanent state of war?