I recomend looking up "Broken arrow" - many nuclear weapons have been destroyed or lost, often with signifficant local loss of life (generally the bomber crew &

I recomend looking up "Broken arrow" - many nuclear weapons have been destroyed or lost, often with signifficant local loss of life (generally the bomber crew & often crew of the aicraft the bombrr colided with) as well as local contamination. Also some of the soviet bomb development efforts caused wide scale contamination, sometime even in inhabitted areas.