 At his feet, a battery of radiological detection instruments, including a newly installed electronic device twice as sensitive as the old model, murmured softly, revealing nothing unusual in the atmosphere around them. But as they finally approached the plant later that morning, it became clear that something extraordinary had happened. The alarm on the radiation dosimeter first sounded as they passed the concrete signpost marking the perimeter of the power station grounds, and the lieutenant gave orders to stop the vehicle and log their findings.