Prepare materials and tools properly before interruption, notify the relevant personnel to be on alert, prepare relevant safety materials or substitute facilities, hang warning signs.

中断前作好器材工具的准备工作，通知相关人员提高警觉，准备相关安全器材或替代设施，悬挂警告标示。

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You can add events to your personal schedule and set an alert to remind you, and get details about facilities using interactive, searchable maps.

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That whole area is very spread out, so they would need to conduct a massive, co-ordinated attack on several facilities all at the same time and the Saudis seem to be alert to this ambition.

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