A short produced by the US government about the development of the hydrogen bomb leading up to its testing and explosion over Bikini Atoll. A short produced by the US government about the development of the hydrogen bomb leading up to its testing and explosion over Bikini Atoll. A short produced by the US government about the development of the hydrogen bomb leading up to its testing and explosion over Bikini Atoll. A short produced by the US government about the development of the hydrogen bomb leading up to its testing and explosion over Bikini Atoll.