The chief lesson of 9/11 should have been that small bands of terrorists, using simple methods, can exploit loopholes in existing security systems. But instead, many preferred to engage in massive extrapolation: If 19 men could hijack four airplanes simultaneously, the thinking went, then surely al Qaeda would soon make an atomic bomb.
As a misguided Turkish proverb holds, "If your enemy be an ant, imagine him to be an elephant." The new information unearthed in Osama bin Laden's hideout in Abbottabad, Pakistan, suggests that the United States has been doing so for a full decade. Whatever al Qaeda's threatening rhetoric and occasional nuclear fantasies, its potential as a menace, particularly as an atomic one, has been much inflated.
The public has now endured a decade of dire warnings about the imminence of a terrorist atomic attack. In 2004, the former CIA spook Michael Scheuer proclaimed on television's 60 Minutes that it was "probably a near thing," and in 2007, the physicist Richard Garwin assessed the likelihood of a nuclear explosion in an American or a European city by terrorism or other means in the next ten years to be 87 percent. By 2008, Defense Secretary Robert Gates mused that what keeps every senior government leader awake at night is "the thought of a terrorist ending up with a weapon of mass destruction, especially nuclear." Few, it seems, found much solace in the fact that an al Qaeda computer seized in Afghanistan in 2001 indicated that the group's budget for research on weapons of mass destruction (almost all of it focused on primitive chemical weapons work) was some $2,000 to $4,000.
In the wake of the killing of Osama bin Laden, officials now have more al Qaeda computers, which reportedly contain a wealth of information about the workings of the organization in the intervening decade. A multi-agency task force has completed its assessment, and according to first reports, it has found that al Qaeda members have primarily been engaged in dodging drone strikes and complaining about how cash-strapped they are. Some