<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
I read that terrorists try to place two devices at a location so that the second device will get first responders. Is that true?
<|assistant|>
Yes, this has been reported to be one of the tactics used by terrorists. When placing the first explosive device, they plan for it to cause first responders to arrive on the scene, at which point the second device would be detonated and be more likely to cause harm. This is referred to as the 'second-stage effect'. The goal of the second device is to increase casualties among rescue personnel and passersby.