The 'duck and cover' bit is interesting
You know, how the narrator just presents a nuclear explosion as matter-of-fact.
Tommy is riding a bike, there's a flash, the narrator says very matter-of-factly there's a nuclear explosion and Tommy knows what to do, as Tommy goes and lies in a gutter on the side of the road. LIES IN A GUTTER ON THE SIDE OF THE ROAD! What about how if there was an atomic war happening, it would be THE END OF THE WORLD!