In the 1990s something extraordinary happened. We saw a treaty to stop the emission of the gases which cause climate change. And we saw the signing of a treaty to stop nuclear testing.
Building an atomic bomb which can fit on a long distance missile cannot be done without testing. Like successful heart surgery the skills needed to do it can't be put down on paper. It can only be done through regular practice which develops the tacit skills needed. The U2 song isn't utopian.…