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by Nokinside 3627 days ago
B61 bombs have command disable mechanism. It can be rendered permanently unusable just by entering 3-digit code and pulling a handle.

It's also possible to encode the required code physically into the explosives by mixing high and slow explosives randomly in each bomb. PAL code is then needed to adjust the timing of the detonators so that detonation front is symmetrical. Even if you bypass all the electronics, it's impossible to guess the timing without the code.

1 comments

You can still extract the warhead for use in a dirty bomb