About time someone said it.
Without diminishing what happened that day, historian David Bell takes a look at 9/11, and makes a convincing argument that — as tragic as 9/11 was — it has resulted in a massive overreaction. Key sentences (emphasis mine):
The people who attacked us in 2001 are indeed hate-filled fanatics who would like nothing better than to destroy this country. But desire is not the same thing as capacity, and although Islamist extremists can certainly do huge amounts of harm around the world, it is quite different to suggest that they can threaten the existence of the United States.
Yet a great many Americans, particularly on the right, have failed to make this distinction. For them, the "Islamo-fascist" enemy has inherited not just Adolf Hitler’s implacable hatreds but his capacity to destroy. The conservative author Norman Podhoretz has gone so far as to say that we are fighting World War IV (No. III being the Cold War).
But it is no disrespect to the victims of 9/11, or to the men and women of our armed forces, to say that, by the standards of past wars, the war against terrorism has so far inflicted a very small human cost on the United States. As an instance of mass murder, the attacks were unspeakable, but they still pale in comparison with any number of military assaults on civilian targets of the recent past, from Hiroshima on down.