The reality of today's world is that terrorist incidents could happen and will happen. Thus, it is unrealistic that a business or company does not take actions to prevent or at least mitigate potential damage from a terrorist event.

Reducing a facility's vulnerability to an airborne NBC attack requires a comprehensive approach. Decisions concerning which protective measures to implement should be based upon the threat profile and a security assessment of the workplace and its occupants. While physical security is the first layer of defense, other issues must also be addressed.

This is why preventing possible terrorist access to outdoor air intakes and mechanical rooms and developing NBC-contingent emergency response plans should be addressed as soon as possible. Additional measures can provide further protection. A security assessment should be done to determine the necessity of additional measures. Some items, such as improved maintenance and HVAC system controls, may also provide a payback in operating costs and/or improved workplace air quality. As new facility designs or modifications are considered, designers should consider that practical NBC sensors may soon become available. Facility system design features that are capable of incorporating this rapidly evolving technology will most likely offer a greater level of protection.

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