Furthermore , regardless of if a nuclear attack on a city is of the surface or air-burst variety or a mixture of both , the advice to shelter in place , in the interior of well-built homes , or if available , fallout shelters , as suggested in the film '' Duck and Cover '' , will drastically reduce one 's chance of absorbing a hazardous dose of radiation . A real-world example of this occurred after the Castle Bravo test where , in contrast to the crew of the Lucky Dragon , the firing crew that triggered the explosion safely sheltered in their firing station until after a number of hours had passed and the radiation levels outside fell to dose rate levels safe enough for an evacuation to be considered . The comparative safety experienced by the Castle Bravo firing crew served as a proof of concept to civil defense personnel that shelter in place ( or " buttoning up " as it was known then ) is an effective strategy in mitigating the potentially serious health effects of local fallout
Castle Bravo
Castle Bravo
Duck and cover