Was 9/11 really that bad?

David A. Bell writes,

IMAGINE THAT on 9/11, six hours after the assault on the twin towers and the Pentagon, terrorists had carried out a second wave of attacks on the United States, taking an additional 3,000 lives. Imagine that six hours after that, there had been yet another wave. Now imagine that the attacks had continued, every six hours, for another four years, until nearly 20 million Americans were dead. This is roughly what the Soviet Union suffered during World War II, and contemplating these numbers may help put in perspective what the United States has so far experienced during the war against terrorism.

It also raises several questions. Has the American reaction to the attacks in fact been a massive overreaction? Is the widespread belief that 9/11 plunged us into one of the deadliest struggles of our time simply wrong? If we did overreact, why did we do so? Does history provide any insight?

Certainly, if we look at nothing but our enemies' objectives, it is hard to see any indication of an overreaction. 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.

...as the comparison with the Soviet experience should remind us, the war against terrorism has not yet been much of a war at all, let alone a war to end all wars. It is a messy, difficult, long-term struggle against exceptionally dangerous criminals who actually like nothing better than being put on the same level of historical importance as Hitler — can you imagine a better recruiting tool? To fight them effectively, we need coolness, resolve and stamina. But we also need to overcome long habit and remind ourselves that not every enemy is in fact a threat to our existence.

Absolutely. The whole point of terrorism is that it's desperation, and so far, at least, not very effective.