How safe are nuclear weapons?

Considering the number of nuclear weapons that have been created since 1945, it is something of a miracle that up to now there hasn't been a major nuclear explosion involving them, so how safe are nuclear weapons?

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Presented by Paul Shillito

Written and Researched by Paul Shillito

Images and Footage:
USAF, Sandia National Labs, DOD, US Army, Kelly Michals
Australian Army, US Navy

Music From the Youtube library
Beginnings (Intro) by The Tower of Light
Frost by HOVATOFF
What Could Appear by Puddle of Infinity

As well as sections created by Paul Shillito
Safe & Secure 2 by Paul Shillito ~ https://youtu.be/AH17Dnm9nrY
Safe & Secure 4 by Paul Shillito ~ https://youtu.be/utBAdhV-ahQ
Safe & Secure 5 by Paul Shillito ~ https://youtu.be/3093KPlYgAQ

Видео How safe are nuclear weapons? канала Curious Droid