Every time I hear our Governments talking about terrorism I can't help but think of the book within 1984 - The Theory and Practice of Oligarchical Collectivism. The following is the Wikipedia summary of the relevant section.
"By harnessing the hysteria of war and demand for self-sacrifice, each of the nations declare war not on each other but on their own populace ... Permanent limited war also allows for the Party to divert attention away from domestic concerns and their failures."
Problem is I don't know what's worse; if this is really a government aim or if I trust our government so little in the first place that I believe it could be a government aim.