"Why? Same reason we wanted one."
The United States entered World War II because it had been attacked. It developed nuclear weapons to survive, and it did not enslave or starve its people in the process. It used nuclear weapons to end the war quickly and decisively. When it was the only nuclear power, it did not seek to rule the world. It did not willingly assist in the proliferation of nuclear weapons. If you believe that there is any equivalence between the United States and North Korea, you are a fool who has no business writing for this forum, living in this country, or circulating among the civilized.