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Jeff Arens aims what looks like a simple hand-held camera — the kind used by parents at their kids’ school performances and games — inside a metal cabinet filled with pipes, gauges and other equipment.
Then Korby Bracken, the director of health, safety and environmental issues in the Rocky Mountains for Anadarko Petroleum Corp., reaches in and flips a switch inside the cabinet.
There’s a quick hissing sound, then silence. To the naked eye, nothing’s visible in the cabinet. There’s no…