UN General Assembly
1958

81. The difficulty of keeping war in check will increase with every addition to the number of the nuclear Powers. There can be no mistaking the urgency of the danger. It would be tragic if, at the very moment when these Powers seemed to be moving towards suspension of tests, smaller Powers began to make, test and perhaps even use these terrible weapons. One can think of antagonisms between small Powers which are so bitter that one side or the other might not hesitate to use such weapons.