Unthinkable_ Who Survives When Disaster Strikes - and Why - Amanda Ripley [23]
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 people were likely killed because they drove instead of flew, according to a 2006 study of road accidents in America 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 uncertainty. “The greatest cost of terrorism may be the public’s response to the attacks rather than the attacks themselves,” the authors note.
In reality, even after 9/11, driving remained much, much more dangerous than flying. The chance of dying on a major domestic commercial flight from 1992 through 2001 was roughly 8 in 100 million, according to a 2003 analysis in American Scientist. Driving the same distance as the average flight segment is, by comparison, about sixty-five times riskier.
Hierarchy of Fears
Justin Klabin, a partner in a manufacturing firm in New Jersey, is not a coward. He has ridden motorcycles, played competitive rugby, and fought fires. In 2005, he even tried out for the America’s Cup bobsled team; that is, he willingly hurtled down an iced, steeply banked course at speeds up to 90 mph in a fiberglass sled controlled almost exclusively by gravity. But after 9/11, Klabin decided to stop flying on airplanes. He had watched the Twin Towers collapse from across the Hudson River in New Jersey, and he had responded to Ground Zero with his fire department. That was all he needed to see. “I’d like to get on a plane,” he says. “It would be a lot easier.” But he is convinced that plane travel is just not worth the risk. “Flying is so many things combined—claustrophobia, fear of heights, fear of being out of control,” says Klabin.