Today in Labor History January 24, 1961: A B-52 bomber, carrying three 4-megaton Mark 39 nuclear bombs, broke up in mid-air, dropping its nuclear payload over North Carolina. Five crewmen successfully bailed out of the aircraft and landed safely. Another ejected, but did not survive the landing. Two others died in the crash. Each of the bombs had more than 250 times the destructive power of the Hiroshima bomb. Each one was large enough to create a 100% kill zone within an 8.5 miles radius. A supervisor of nuclear safety at Sandia National Laboratories said that "one simple, dynamo-technology, low voltage switch stood between the United States and a major catastrophe." However, there is evidence that the switch of at least one of the bombs was set to ARM. No one knows why none of them exploded. And while the authorities were able to recover the uranium core from two of the bombs, one of them is still lost somewhere in North Carolina.

For a truly terrifying look at just how many times we were just a hair trigger away from a major nuclear accident, read Eric Schlosser’s “Command and Control.” Also consider that we are currently in a massive resurgence of the nuclear arms race, with potential flashpoints in Ukraine, Israel, China, and Iran.