Medieval and modern religious wars have annihilated millions. All this has been done without benefit of nuclear power. Gen. MacArthur's comments came at the beginning of the atomic or nuclear age, and while the source and the judgment deserve respect, experience has shown that nuclear power in Western hands deterred a third world war and ultimately caused the collapse of the greatest threat to world peace since World War II, namely, the Soviet Union. War is a terrible thing but the fear of annihilation will curb even the greatest tyrants' bloodlust. In short, fear is part of the human condition and those peaceful nations which learn to live with the destructive potential of nuclear power are capable of great good.
Great evil is more likely to be the result of unchecked nuclear power in hands of lawless nations.
As ever, peace and safety depend upon military power being in the right hands. Hiroshima Plus 20.