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A dry run is an act committed by a terrorist organization without carrying out any actual terrorism in an attempt to determine whether a technique they are planning to use will be successful. The dry run is part of the rehearsal for a terrorist act,〔The Dictionary of Homeland Security and Defense; By Margaret R O'Leary; page 149〕 and is often the immediate precursor to the attack.〔Securing global transportation networks: a total security management approach; By Luke Ritter, J. Michael Barrett, Rosalyn A. Wilson; page 255〕 It may include attempting to smuggle weapons or other items to be used in the attack past a security checkpoint to determine whether or not this will be noticed, or monitoring the reactions of security personnel to the actions that would occur during a real attack. The dry run is considered to be the heart of the planning stages of the terrorist attack.〔Citizens Terrorism Awareness and Survival Manual: Protecting America with; By Michael J. Licata; page 20〕 It is the method by which strengths and weaknesses in the plot are exposed to the terrorists, unforeseen obstacles can be detected, and the techniques are refined.〔Understanding, assessing, and responding to terrorism: protecting critical; By Brian T. Bennett; pages 209-10〕 Sometimes, multiple dry runs are conducted in an effort to perfect the ultimate attack.〔Disaster planning and control; By William M. Kramer; pages 278-79〕 ==Suspicious signs== The following are suspicious signs a dry run may be occurring:〔Understanding, assessing, and responding to terrorism: protecting critical; By Brian T. Bennett; page 210〕〔Counter-Terrorism Handbook: How to Protect Yourself at Home and Abroad; By Phil Little, Albert Perrotta; page 32〕 *Appearing out-of-place *Sitting in car and observing operations for no apparent reason *Photography or videotaping with no apparent reason *Monitoring of a police radio frequency and observing response times to calls *Mapping out routes to determine timing of traffic flow and lights *Attempting to learn inside information about the operations of a place *Abandoning object(s), such as pieces of luggage 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Dry run (terrorism)」の詳細全文を読む スポンサード リンク
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