"Perhaps there is some hope that its capacity for death and terror among the defenseless may restrain nations from using the atom bomb against each other, just as in the last war such fears made them avoid employment of the new and deadlier poison gases developed since World War I. However, I am forced to a reluctant conclusion that for the security of my own country which has been the guiding principle in my approach to all problems faced during my career, there is but one course open to us: Until the United Nations, or some world organization, can guarantee- and have the power to enforce that guarantee- that the world will be spared the terrors of atomic warfare, the United States must have more and better atomic bombs than any potential enemy."