A Cold War-era national warning system that used radio broadcasts to alert the public about air raids and nuclear attacks.
An acronym from 'Control of Electromagnetic Radiation' created in 1951 during the Cold War to describe the civilian alert broadcast system in the United States.
CONELRAD is why emergency broadcasts exist today—the system required all radio stations to go silent except for two designated frequencies, creating an eerie nationwide silence that would signal danger to everyone at once.
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