British nukes were protected by bike locks Newsnight has discovered that until the early days of the Blair government the RAF's nuclear bombs were armed by turning a bicycle lock key How to arm a bomb
There was no other security on the Bomb itself.
While American and Russian weapons were protected by tamper-proof combination locks which could only be released if the correct code was transmitted, Britain relied on a simpler technology.
The Dr Strangelove scenario
The British military resisted Whitehall proposals to fit bombs with Permissive Action Links - or PALs - which would prevent them being armed unless the right code was sent.
UK nuclear weapons are designed first and foremost to be secure and safe
Read the MoD statement
PALs were introduced in the 1960s in America to prevent a mad General or pilot launching a nuclear war off their own bat - the Dr Strangelove scenario.
President Kennedy ordered that every American nuclear bomb should be fitted with a PAL.
Read all about it at................................................
http://news.bbc.co.uk/1/hi/programmes/newsnight/7097101.stmNuclear weapons security - MoD statement
Statement from the MoD on nuclear security:
UK nuclear weapons are designed first and foremost to be secure and safe. A rigorous system of processes ensures the safety and thoroughness of the operating system for the UK nuclear deterrent.
The fusing, arming and firing circuits are designed such that the warhead must have experienced missile launch and ballistic deployment before it can detonate. Launching a Trident missile from a submarine is a complex activity. Prior to launch, the command and control structure on board the submarine would need to be satisfied that the Prime Minister has issued instructions to launch nuclear weapons. A coordinated effort involving key individuals from the boat's company of 150 is required to launch the missile. The number of participants required to act in concert means that the 'Permissive Action Link' type safeguards found in other systems are not relevant in the SSBN domain.
http://news.bbc.co.uk/1/hi/programmes/newsnight/7097121.stm
