Four years ago today, President Obama gave his first speech abroad. In Prague, he announced a bold vision for a “world without nuclear weapons.” Four years on, it is fair to ask: How is that working out? Assessing all the positives, and all the negatives, are we closer to the president’s aspiration — or further from it?
Former Senator Sam Nunn, a leading advocate for pursuing a nuclear weapons-free world, compares this undertaking to climbing an unscaled mountain. Standing in the valley, it may be impossible to see the peak. But as one reaches successive base camps, new vistas appear.