2017.04.03 09:44
https://www.nytimes.com/2017/04/03/us/politics/north-korea-nuclear-trump-china.html?smid=nytcore-ipad-share&smprod=nytcore-ipad
An ad for the bomb-boosting isotope lithium 6 suggests how far the North’s nuclear program has come, and how difficult President Trump’s vow to halt it will be.