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5 J. Transp. Sec. 1 (2012)

handle is hein.journals/jtransps5 and id is 1 raw text is: J Transp Secur (2012) 5:1-34 DOI 10.1007/s12198-011-0077-0 Assessing the security benefits of a trusted traveler program in the presence of attempted attacker exploitation and compromise Brian A. Jackson - Edward W. Chan- Tom LaTourrette Received: 10 June 2011 /Accepted: 16 June 2011 /Published online: 23 July 2011 O Copyright RAND Corporation 2011 Abstract Current aviation security procedures screen all passengers uniformly. Varying the amount of screening individuals receive based on an assessment of their relative risk has the potential to reduce the security burdens on some travelers, while improving security overall. In this paper we examine the security costs and benefits of a trusted traveler program, in which individuals who have been identified as posting less risk than others are allowed to pass through security with reduced security screening. This allows security resources to be shifted from travelers who have been identified as low risk, to the remaining unknown-risk population. However, fears that terrorists may exploit trusted traveler programs have dissuaded adoption of such programs. Our analysis estimates the security performance of a trusted traveler program in the presence of attacker attempts to compromise it. We found that, although these attempts would reduce the maximum potential security benefits of a program, they would not eliminate those benefits in all circumstances. Keywords Aviation security . Adversary behavior . Policy robustness . Program design - Trusted traveler - Registered traveler Since September 11, 2001, very significant changes have been made to aviation security in an effort to prevent future terrorist attacks. Additional screening processes have been put in place, new technologies have been deployed, and-as is reflected in the budgets for the aviation elements of the Transportation Security Administra- tion-increased resources, now exceeding $6 billion dollars per year, have been committed to aviation security (Department of Homeland Security 2011). As these changes have occurred, however, questions have been raised about the basic B. A. Jackson (E) RAND Corporation, 1200 South Hayes Street, Arlington, VA 22202, USA e-mail: bjackson@rand.org E. W. Chan - T. LaTourrette RAND Corporation, 1776 Main Street, Santa Monica, CA 90401, USA 4L Springer

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