Maybe there is a God after all: US Air Force nearly detonated atomic bomb over North Carolina in 1961

Journalist uses Freedom of Information Act to disclose 1961 accident in which one switch averted catastrophe

At least 700 "significant" accidents and incidents involving 1,250 nuclear weapons were recorded between 1950 and 1968 alone

A secret document, published in declassified form for the first time by the Guardian today, reveals that the US Air Force came dramatically close to detonating an atom bomb over North Carolina that would have been 260 times more powerful than the device that devastated Hiroshima.

The document, obtained by the investigative journalist Eric Schlosser under the Freedom of Information Act, gives the first conclusive evidence that the US was narrowly spared a disaster of monumental proportions when two Mark 39 hydrogen bombs were accidentally dropped over Goldsboro, North Carolina on 23 January 1961. The bombs fell to earth after a B-52 bomber broke up in mid-air, and one of the devices behaved precisely as a nuclear weapon was designed to behave in warfare: its parachute opened, its trigger mechanisms engaged, and only one low-voltage switch prevented untold carnage.

Each bomb carried a payload of 4 megatons – the equivalent of 4 million tons of TNT explosive. Had the device detonated, lethal fallout could have been deposited over Washington, Baltimore, Philadelphia and as far north as New York city – putting millions of lives at risk. Though there has been persistent speculation about how narrow the Goldsboro escape was, the US government has repeatedly publicly denied that its nuclear arsenal has ever put Americans' lives in jeopardy through safety flaws. But in the newly-published document, a senior engineer in the Sandia national laboratories responsible for the mechanical safety of nuclear weapons concludes that "one simple, dynamo-technology, low voltage switch stood between the United States and a major catastrophe".

Writing eight years after the accident, Parker F Jones found that the bombs that dropped over North Carolina, just three days after John F Kennedy made his inaugural address as president, were inadequate in their safety controls and that the final switch that prevented disaster could easily have been shorted by an electrical jolt, leading to a nuclear burst. "It would have been bad news – in spades," he wrote. Jones dryly entitled his secret report "Goldsboro Revisited or: How I learned to Mistrust the H-Bomb" – a quip on Stanley Kubrick's 1964 satirical film about nuclear holocaust, Dr Strangelove or: How I Learned to Stop Worrying and Love the Bomb.

The accident happened when a B-52 bomber got into trouble, having embarked from Seymour Johnson Air Force base in Goldsboro for a routine flight along the East Coast. As it went into a tailspin, the hydrogen bombs it was carrying became separated. One fell into a field near Faro, North Carolina, its parachute draped in the branches of a tree; the other plummeted into a meadow off Big Daddy's Road.

Jones found that of the four safety mechanisms in the Faro bomb, designed to prevent unintended detonation, three failed to operate properly. When the bomb hit the ground, a firing signal was sent to the nuclear core of the device, and it was only that final, highly vulnerable switch that averted calamity. "The MK 39 Mod 2 bomb did not possess adequate safety for the airborne alert role in the B-52," Jones concludes.

The document was uncovered by Schlosser as part of his research into his new book on the nuclear arms race, Command and Control. Using freedom of information, he discovered that at least 700 "significant" accidents and incidents involving 1,250 nuclear weapons were recorded between 1950 and 1968 alone. "The US government has consistently tried to withhold information from the American people in order to prevent questions being asked about our nuclear weapons policy," he said. "We were told there was no possibility of these weapons accidentally detonating, yet here's one that very nearly did."

http://www.theguardian.com/world/2013/sep/20/usaf-atomic-bomb-north-carolina-1961#comments

Account of H-bomb near-disaster over North Carolina: declassified document

This document was written on 22 October 1969 by Parker F Jones, the supervisor of the nuclear weapons safety department at Sandia national laboratories. The document has recently been declassified having been acquired under freedom of information provisions by the investigative reporter Eric Schlosser for his new book Command and Control. It is published here for the first time. In the document, Jones gives his response to a passage in a book by Dr Ralph Lapp, a physicist involved in the Manhattan Project that developed the first nuclear bombs, that describes the accident in 1961 in which two hydrogen bombs were dropped inadvertently over North Carolina. An extract of Lapp's book is reprinted on the left hand column of the first page of this document, and Jones's expert response is printed on the right hand column. The second page of the document is all in Jones's words, giving his expert opinion on the serious nature of the accident and how close America came to catastrophe

See also:

Vasili Arkhipov, the man who stopped nuclear war

The Nuclear History Of Bikini Atoll (PHOTOS)

Nuclear Testing in the Marshall Islands: A Chronology of Events

Atomic Gaffes ‘Command and Control,’ by Eric Schlosser

A little over 50 years ago a South Carolina doctor (and the grandfather of this reviewer) treated a family for injuries sustained when a sudden, inexplicable explosion tore through their backyard. The injuries were not serious, and after spending the night at the doctor’s house they returned home to discover that the object in the 50-foot crater left behind their house was an atomic bomb that had fallen from a passing Air Force plane. The bomb had not been “armed” with its nuclear core; the blast came from the explosives intended to trigger a chain reaction. The crater can still be seen today..