...Iraq hawks argued that, in a post-9/11 world, we needed to take out rogue regimes lest they give nuclear or biological weapons to al-Qaeda-linked terrorist groups. But each time the United States tries to do so and fails to restore order, it incurs a high -- albeit unseen -- opportunity cost in the future. Falling short makes it harder to take out, threaten or pressure a dangerous regime next time around.Foreign governments, of course, drew the obvious lesson from our debacle -- and from our choice of target. The United States invaded hapless Iraq, not nuclear-armed North Korea. To the real rogues, the fall of Baghdad was proof positive that it's more important than ever to acquire nuclear weapons -- and if the last superpower is bogged down in Iraq while its foes slink toward getting the bomb, so much the better. Iran, among others, has taken this lesson to heart. The ironic legacy of the war to end all proliferation will be more proliferation.
The bottom line is clear, Mr. President: The more you worried about the unchecked spread of doomsday weapons, the stronger you thought the case was for war in the first place. But precisely because you had a point about the need to stop nuclear proliferation, you must now realize that the costs of a failed war are far higher than you've acknowledged.
Ironically, it's probably the doves who should lower their mental estimate of the war's long-haul cost: By fighting a botched war today, the United States has lowered the chance that it will fight another preventive war in the near future. The American public simply does not have the stomach for fighting a costly, potentially futile war every few years...
What Does Iraq Cost? Even More Than You Think (Washington Post, November 18, 2007)
Related: Marginal Revolution (group blog where Dr. Cowen can often be found)
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