The US early warning system is on watch 24/7, looking for signs of a nuclear missile launched at the United States. As a highly complex system with links to sensors around the globe and in space, it relies heavily on computers to do its job. So, what happens if there is a glitch in the computers?
Between November 1979 and June 1980, those computers led to several false warnings of all-out nuclear attack by the Soviet Union—and a heart-stopping middle-of-the-night telephone call. Read more >