The Unthinkable: Who Survives When Disaster Strikes - and Why

by Amanda Ripley

Terrorists understand dread. Unpredictable attacks on civilians are an extremely efficient way to create dread. And dread is a good way to get a population agitated. In fact, the number of Americans killed by international terrorism in the past fifty years is fewer than the number killed by food allergies. But terrorism is by nature a mind game. After 9/11, many thousands of Americans decided to drive instead of fly. Driving felt safer, and, given the spasm of new security rituals in airports, certainly easier. In the months after 9/11, planes carried about 17 percent fewer passengers compared with the same period before the attacks. Meanwhile, the number of miles driven increased about 5 percent, according to government estimates. But something terrible happened in the name of common sense. In the two years after 9/11, an estimated 2,302 additional Americans were likely killed because they drove instead of flew, according to a study by three Cornell University professors. The study compared the total number of road fatalities in the years before 9/11 with the period after. It controlled for other things that might explain a spike in accidents—like bad weather. And after all of that, the researchers found 2,302 deaths above and beyond the “normal” tally of car-accident casualties; that’s 2,302 people who, if not for 9/11, almost certainly would have lived. These were the lesser-known, secondary victims of 9/11, casualties of the adjustments we make in times of great uncert...