Cold war themes in this 1958 version
In the second act, President Grant stops the project to prevent a world war. Many nations (23?) say deployment of the munitions technology would be an attempt to rule the world and therefore an act of war.
The explosion that destroys the side of a rocky hill (they call it a "mountain") produces side effects like those seen in the footage of the Rocky Flats atomic bomb tests.
The debate between the two scientists echoes those between the atomic era scientists on whether to use or hide this massive force.