Milk
Udderly delicious
Which is fair enough.
All I can do is reason why I think, long term, the decision to drop those bombs has benefited the world immensely. It's weird saying that given how many innocent people died, but that's why such things are complex; people put importance on different aspects and come to different decisions.
What it did do was to demonstrate the power (& remoteness) of atomic weapons. Perhaps it was this demonstration that has stopped any more atomic weapons being fired in anger since?