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Has the money spent on airport security since 9/11 made us safer?

Topics: Terrorism September 11th Attacks

Background

After the September 11th Attacks, the government increased investment in airport security. There is skepticism as to whether such money is actually well spent. A common skeptical argument is that while the government's measures may make the public feel safer, they do not actually lower the probability of another attack, when considering all possible security vulnerabilities.

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Eleni Linos	Researcher
Elizabeth Linos	Research Scientist
Graham Colditz	Researcher

The cost of airport security ($9 per passenger) is 1000 times higher than for railway security ($0.01 per passenger), even though the number of attacks on trains is similar to that in planes. This is analogous to committing mammography resources to screening only the left breast, and ignoring the right side, even though cancer can affect both breasts.

22 Dec 2007 Source