But the Clinton administration has expended far too little effort building public support for the treaty, which leaves the president in the embarrassing position of seeking a new delay. Which isn't true. The United States stopped underground testing in 1992 because it can accomplish the same goals with computer models. In the world of nuclear proliferation, recent developments are cause for anxiety. Rivals India and Pakistan tested nuclear devices.
Evidence suggests China's capacity was enhanced by the theft of American technology.
North Korea tested missiles capable of delivering nuclear warheads. This imperfect treaty cannot guarantee that rogue nations will not cheat, but monitoring of weapons testing continues. Meanwhile, it's difficult to know what purpose would be served by the United States declaring that nations ought to be free to test if they choose.