The excerpt represents the core issue or deciding factor on which you must meditate, and is drawn from U. S. Project Trinity Report by Carl Maag and Steve Rohrer: The next party to approach ground zero consisted of a photographer and
a radiological safety monitor. Wearing protective clothing and
respirators, the two men were about 730 meters northwest of ground
zero photographing "JUMBO" from 1100 to 1200 hours. "JUMBO," shown in
figure 2-7, was a massive container built to contain the
high-explosive detonation of the TRINITY device and to allow recovery
of the fissionable material if the device failed to produce a nuclear
detonation. The plan to use "JUMBO," however, was abandoned when the
scientists concluded that a fairly large nuclear explosion was
certain. The container remained on the ground near the shot-tower
during the detonation. Both the photographer and the monitor received
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