Looking for a succinct description of why "war on terror" is a terrible label? Check out David Bromwich on the Huffington Post. He does it in less than 120 words:
Acceptance of the phrase "war on terror" is an implicit acceptance of endless war. Terror has been a component of this world from the start--along with sin and death, chaos and night. Terrorists who attack us must be fought, and must be stopped. But terrorists, like other people, act on motives; and one way of fighting them is to remove those motives. A war on terror conceived, as Cheney's experiment has been conceived, as a global war of extermination that ends with the killing of the last terrorist, in fact creates more terrorists than it destroys. A global war on terror means a war to the end of time. It is, in essence, a totalitarian idea.