What is the tone of the poem the diameter of the bomb?

in short this poem talks about the effectivness of bomb. it talks about how it physically may hurt only those who were in its vicinity but emotinally its effected 100s and 100s of people. the diameter of the bomb may be just 30 centimeters but its effect goes way beyond the circle and beyond god as well. this poem trancends from a very literal examination of a bomb's diameter, to the diameter of the bomb's capabilities. It may just physically hurt a few but, emotionally and mentally it effects the entire world.