"There are those who see the fight against al-Qaeda as a war like the second world war or the cold war. But the first analogy is wrong and the moral of the second is not the one intended.
"A hot, total war like the second world war could not last for decades, so the curtailment of domestic liberties was short-lived. But because nobody knew whether the cold war would ever end (it lasted some 40 years), the democracies chose by and large not to let it change the sort of societies they wanted to be. This was a wise choice not only because of the freedom it bestowed on people in the West during those decades, but also because the West's freedoms became one of the most potent weapons in its struggle against its totalitarian foes.
"If the war against terrorism is a war at all, it is like the cold war—one that will last for decades. Although a real threat exists, to let security trump liberty in every case would corrode the civilised world's sense of what it is and wants to be." —The Economist