NYRB: "Except for those by North Korea, there have been no [nuclear] tests anywhere in the world in this century"
However, Trump's national security adviser, Robert C. O'Brien, calls for a return to nuclear testing
"After conducting more than a thousand tests, the US has little to learn from carrying out more. China, on the other hand, has conducted fewer than fifty and would leap at the opportunity to resume if the US were to bear the political opprobrium of breaking the moratorium"