Screening programme evaluation applied to airport security

Department of Epidemiology, Harvard School of Public Health, Boston, MA 02115, USA.
BMJ (online) (Impact Factor: 17.45). 01/2008; 335(7633):1290-2. DOI: 10.1136/bmj.39419.662998.BE
Source: PubMed


Eleni Linos, Elizabeth Linos, and Graham Colditz investigate whether airport security screening would pass the National Screening Committee’s criteria for an effective screening test

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Available from: Graham A Colditz, Oct 05, 2015
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    • "In the United Kingdom, current regulation dictates that travellers must remove any metallic objects prior to screening [2] to ensure that the only positive detections are as a result of restricted items. The removal of items is widely considered to be time-consuming and highly disruptive to passengers, and is considered by some to be disproportionate to the perceived threats [3]; however until such time that walk-through metal detectors are capable of discriminating between threatening and non-threatening objects this procedure is unlikely to change. "
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    ABSTRACT: A previously reported tomographic metal detector which is capable of inverting the location and magnetic polarizability tensor for a single object has been modified such that it is capable of inverting the location and magnetic polarizability tensor for multiple objects. In this paper, the term 'multiple objects' refers to up to three independent metallic objects. The results from this paper show that the algorithm works well for objects vertically separated by greater than 40 cm, however the reliability varies as objects are brought closer together, or are at the same vertical height; the estimation of position for multiple objects tends to perform well, but the estimation of the magnetic polarizability tensor becomes poorer. Interactions taking place between objects is presented as one possible explanation for this.
    Measurement Science and Technology 04/2014; 25(25):55107-55107. DOI:10.1088/0957-0233/25/5/055107 · 1.43 Impact Factor
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    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. KeywordsAviation security–Adversary behavior–Policy robustness–Program design–Trusted traveler–Registered traveler
    Journal of Transportation Security 03/2012; 5(1):1-34. DOI:10.1007/s12198-011-0077-0