What is thermal imaging, the heat-based tech police caught PA inmate Danelo Cavalcante?

What is thermal imaging, the heat-based tech police caught PA inmate Danelo Cavalcante?

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Pennsylvania State police say they used Forward Looking Infrared technology to capture escaped inmate Danelo Cavalcante, a tool that has been used by the military and law enforcement for decades. Here’s how it works and why Hollywood sometimes oversells its usefulness.

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