“509 mission control to Dimples 82, come in Enola Gay!”
“509 mission control this is Dimples 82.”
“Dimples 82 abort mission, repeat, abort mission.”
“negative 509 MC!”
“82 this is an emergency, presidential override, Suzuki has just signed the Potsdam Declaration, repeat abort mission!”
“negative 509 MC, Little Boy has already been delivered.”
“Oh my God!”
“Affirmative, only God can help us now! Over and out.”
“Over and out.”

A flock of a thousand paper-cranes stealthily drifts past the B-29 Superfortess bomber…

“Dimples 82 to 509 mission control, come in mission control!”
“Dimples 82 this is 509 mission control, what is your current status?”
“There has been no detonation, the gadget was a dud, repeat, no detonation!”
“Thank goodness! Return to base. Over and out.”
“Affirmative, returning to base. Over and out.”

10 years later Japan attacks the United States using the designs gleaned from the undetonated atomic bomb, wins and annexes it as the 48th prefecture and forces all Americans to learn Japanese…