Dial 00000000 for Armageddon. US’s top secret launch nuclear launch code was frighteningly simple

For nearly 20 years, the secret code to authorize launching U.S. nuclear missiles, and starting World War III, was terrifyingly simple and even noted down on a checklist.



From 1962, when John F Kennedy instituted PAL encoding on nuclear weapons, until 1977, the combination to fire the devastating missiles at the height of the Cold War was just 00000000.

This was chosen by Strategic Air Command in an effort to make the weapons as quick and as easy to launch as possible, as reported by Today I Found Out.

Mushroom cloud: For nearly 20 years the secret code to authorize U.S. nuclear missiles was terrifyingly easy

Safeguard: This PAL device was meant to be attached to all nuclear weapons from 1962. But according to experts the military circumvented presidential orders by making the code really simple

The Permissive Action Link (PAL) is a security device for nuclear weapons that it is supposed to prevent unauthorized arming or detonation of the nuclear weapon.

JFK signed the National Security Action Memorandum 160 in 1962 that required all nuclear missiles to be fitted with a PAL system.

But nuclear experts claim the military was worried about the possibility of command centers or communication lines being destroyed in real nuclear war, stopping soldiers getting the codes or authorization to launch missiles when they were actually needed.

So they simply left the security code for the weapons as eight zeros, getting around the security safeguards.



Scene: The Ronald Reagan Minuteman Missile State Historic Site in North Dakota which could have been used to launch nuclear weapons

Dr. Bruce G. Blair, worked as a Minuteman launch officer between 1970 and 1974. He has written several articles about nuclear command and control systems.

In a paper called Keeping Presidents in the Nuclear Dark, he wrote that Strategic Air Command 'remained far less concerned about unauthorized launches than about the potential of these safeguards to interfere with the implementation of wartime launch orders.'

Incredibly, he also writes that the vital combination for America's nuclear deterrent was even helpfully noted down for the officers.



'Our launch checklist in fact instructed us, the firing crew, to double-check the locking panel in our underground launch bunker to ensure that no digits other than zero had been inadvertently dialed into the panel,' Dr Blair wrote.

Red button: A former nuclear missile launch control facility - firing the weapons needed the code 00000000

According to Today I Found Out, Blair wrote an article in 1977 entitled The Terrorist Threat to World Nuclear Programs.



This claimed that it would take just four people working together to launch nuclear missiles from the silos he had worked in.

