In my line of work, you have to have a long memory. Periods of success in negotiations are followed by droughts, because of politics, military upheaval, arms buildups—yes, sometimes the weapons have to be built before they can be reduced—or a sense of complacency: “We have arms control treaties in place; let’s just focus on implementing them.” In those cases, new thinking and new negotiations may slow or even stop. Yet, the national security interest of the United States continues to drive the necessity for nuclear arms control.

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