What is a primary concern regarding secondary explosives?

The primary concern regarding secondary explosives is their use in acts of terrorism and the potential risk they pose to first responders. Secondary explosives are typically more stable than primary explosives, which makes them appealing for use in terrorist attacks. The deliberate detonation of these explosives can cause significant harm to public safety, lead to mass casualties, and disrupt social order.

First responders face heightened dangers when responding to incidents involving secondary explosives, as the environment could be booby-trapped or there might be multiple explosives present. The unpredictability surrounding multiple potential devices can complicate their emergency response efforts, making their safety a critical priority. This concern emphasizes the need for vigilance, awareness, and specialized training for law enforcement and emergency personnel when handling situations that may involve explosive materials.

Other options provide relevant topics but do not align as closely with the immediate risks associated with secondary explosives in the context of public safety and terrorism. For instance, while environmental pollution and theft of materials can be valid concerns, they do not pose the same direct and immediate threat to life and safety as the use of secondary explosives in a terrorist context does.