The threat of terrorism, which created the vogue for a national ‘‘homeland security’’ infrastructure, must be understood in a strategic context. Terrorist attacks have direct costs, but they also seek self-injurious overreaction, such as the waste of blood and treasure on the part of the victim state; recruitment and sympathy gains when the victim state misdirects a violent response; and the weakening of the political order in the society attacked so that it is induced to act wrongly. When it does so, it cedes the moral and ideological high ground, making terrorists groups look relatively more legitimate.

Policymakers should use risk management to prioritize security efforts, and they should avoid holding out the promise of perfect security, as there is no such thing. Civil liberties must be fully protected, and doing so is consistent with proportionate and well-focused domestic security efforts.

More on Counterterrorism and Homeland Security

Commentary

Spying’s the Story, Not Edward Snowden

By Gene Healy. DC Examiner. June 24, 2013.

NSA Snooping Matters, Even if You Have ‘Nothing to Hide’

By Julian Sanchez. Mashable. June 14, 2013.

Do the NSA’s Phone and Internet Monitoring Programs Make Sense?

By Jeffrey A. Miron. Huffington Post. June 13, 2013.

Cato Studies

Abolish the Department of Homeland Security

By David Rittgers. Policy Analysis No. 683. September 8, 2011.

The Atomic Terrorist?

By John Mueller. Nuclear Proliferation Update No. 5. January 31, 2010.

Fusion Centers: Leave ‘Em to the States

By Jim Harper. TechKnowledge No. 100. March 13, 2007.

Articles

Terrorism Risks and Cost-Benefit Analysis of Aviation Security

John Mueller and Mark G. Stewart. Risk Analysis. October 4, 2012.

The Terrorism Delusion: America’s Overwrought Response to September 11

John Mueller. International Security. Vol. 37. No. 1. Summer 2012.

Managing Fear: The Politics of Homeland Security

Benjamin H. Friedman. Political Science Quarterly. Vol. 126. No. 1. Se, 2011.

Public Filings

Criminal Code Modernization and Simplification Act of 2011

By Tim Lynch. Testimony. December 13, 2011.

Legislation to Protect the Rights of Travelers

By Jim Harper. Testimony. March 30, 2011.

The Reauthorization of the PATRIOT Act

By Julian Sanchez. Testimony. March 9, 2011.

Reviews & Journals

Kill or Capture: The War on Terror and the Soul of the Obama Presidency

Benjamin H. Friedman. Cato Journal. Winter 2013.

Conquering Terrorism With Capitalism

P.J. O'Rourke. Cato's Letter. Summer 2002.

Events

The Implications of the Expanding U.S. Drone Program

Featuring Benjamin H. Friedman and Julian Sanchez. May 17, 2013. Capitol Hill Briefing.

How Safe Are We? Balancing Risks, Benefits, and Costs

Featuring John Mueller and Mark G. Stewart. May 3, 2013. Capitol Hill Briefing.

Drones and the New Way of War

Featuring Malou Innocent and Benjamin H. Friedman. April 22, 2013. Policy Forum.