An anonymous reader writes "Famed academic Kenneth Waltz for years has argued that more nukes around the world create peace. Why? Because the more nukes are around, the more people are afraid to start a war with a nuclear-armed state. Peace seems assured with a gun to the world's head. In a recent interview, he argues that Iran gaining nuclear weapons would be a good thing. He points out that 'President Obama and a number of others have advocated the abolition of nuclear weapons and many have accepted this as both a desirable and a realistic goal. Even entertaining the goal and contemplating the end seems rather strange. On one hand the world has known war since time immemorial, right through August 1945. Since then, there have been no wars among the major states of the world. War has been relegated to peripheral states (and, of course, wars within them). Nuclear weapons are the only peacekeeping weapons that the world has ever known. It would be strange for me to advocate for their abolition, as they have made wars all but impossible.'"