1. British Broadcasting Corporation (no date) 1986: UK cuts links with Syria over bomb plot. http://news.bbc.co.uk/onthisday/hi/dates/stories/october/24/newsid_2478000/2478505.stm . Accessed June 7, 2011.
2. Brown, DP (2011) $100 bribe to ticket agent allows unknown package to fly on JetBlue. Seattle Post Intelligencer Blog. http://blog.seattlepi.com/airlinereporter/2011/01/17/100-bribe-to-ticket-agent-allows-unknown-package-to-fly-on-jetblue/ . Accessed June 7, 2011/
3. Caulkins JP (2004) CAPPS II: A risky choice concerning an untested risk detection technology. Risk Anal 24(4):921–924
4. Cavusoglu H, Koh B, Raghunathan S (2010) An analysis of the impact of passenger profiling for transportation security. Oper Res 58(5):1287–1302
5. Chow J, Chiesa J, Dreyer P, Eisman M, Karasik TW, Kvitky J, Lingel S, Ochmanek D, Shirley C (2005) Protecting commercial aviation against the shoulder-fired missile threat. RAND Corporation, Santa Monica